2025Article de journal ER4 Auteurs : Ridošková, Andrea; Pelfrêne, Aurélie; Pelcová, Pavlína; Waterlot, Christophe; Holasová, Denisa; Morávek, Michal Enhancing the prediction of arsenic bioavailability in soils with the diffusive gradient in thin film technique Chemosphere, vol. 371, p. 144015, 2025, (ACL). @article{ridoskova:hal-04879845,
title = {Enhancing the prediction of arsenic bioavailability in soils with the diffusive gradient in thin film technique},
author = {Andrea Ridošková and Aurélie Pelfrêne and Pavlína Pelcová and Christophe Waterlot and Denisa Holasová and Michal Morávek},
url = {https://hal.science/hal-04879845},
doi = {10.1016/j.chemosphere.2024.144015},
year = {2025},
date = {2025-02-01},
urldate = {2025-02-01},
journal = {Chemosphere},
volume = {371},
pages = {144015},
publisher = {Elsevier},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
|
2023Article de journal ER4 Auteurs : Billmann, Madeleine; Hulot, Corinne; Pauget, Benjamin; Badreddine, Rabia; Papin, Arnaud; Pelfrêne, Aurélie Oral bioaccessibility of PTEs in soils: A review of data, influencing factors and application in human health risk assessment Science of the Total Environment, vol. 896, p. 165263, 2023, (ACL). @article{billmann:hal-04288865,
title = {Oral bioaccessibility of PTEs in soils: A review of data, influencing factors and application in human health risk assessment},
author = {Madeleine Billmann and Corinne Hulot and Benjamin Pauget and Rabia Badreddine and Arnaud Papin and Aurélie Pelfrêne},
url = {https://hal.science/hal-04288865},
doi = {10.1016/j.scitotenv.2023.165263},
year = {2023},
date = {2023-10-01},
urldate = {2023-10-01},
journal = {Science of the Total Environment},
volume = {896},
pages = {165263},
publisher = {Elsevier},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
|
2022Conférence ER4 Auteurs : Cheval, Pénélope; Vandoorne, Bertrand; Douay, Francis; Pruvot, Christelle; Pelfrêne, Aurélie Construction of functional and fertile Technosols from materials,
waste and by-products for use in biointensive micro-gardening Soil Science, Crossing Boundaries, Changing Society (22 WCSS), 31
July-5August 2022, Glasgow (Scotland, United Kingdom), 2022, (ACTI). @conference{Cheval2022,
title = {Construction of functional and fertile Technosols from materials,
waste and by-products for use in biointensive micro-gardening},
author = {Pénélope Cheval and Bertrand Vandoorne and Francis Douay and Christelle Pruvot and Aurélie Pelfrêne},
year = {2022},
date = {2022-01-01},
booktitle = {Soil Science, Crossing Boundaries, Changing Society (22 WCSS), 31
July-5August 2022, Glasgow (Scotland, United Kingdom)},
abstract = {Soil is a limited resource subject to multiple pressures. Soil degradation sometimes leads to the loss of its functions, which is an irreversible process on a lifetime scale. The area covered by fertile soil decreases as it is exposed to anthropogenic activities. To meet the demand for the reconnection to food production in cities, it appears interesting to conceive functional Technosols using materials, waste, and by-products instead of extracting and transporting natural fertile soils. Technosols are soils with at least 20% of artifacts, a geomembrane or a technic hard rock. In the present work, two Technosols were designed and tested in a greenhouse experiment for a bio-intensive micro-gardening use. Their conception was based on the physico-chemical characteristics of soils known for their high agronomic potential for vegetable growing, as well as on the selection of available materials whose characteristics met the expectations. For one year, three aspects were studied to assess the ability of Technosols to support the production of food biomass. These include the pedological component by measuring the physico-chemical parameters of the Technosols; the biological component comprising several bio-indicator organisms of the soil fauna as well as ecophysiological indicators of the crops (photosynthetic and nitrogenous status) and their development; and the ecological engineering component by studying the ability of an ecosystem engineers to improve the fertility of the Technosols. After a few months, some pedogenetic processes were initiated and the indicators selected to evaluate the fertility of the constructed Technosols showed a good potential to support vegetable crops.},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Soil is a limited resource subject to multiple pressures. Soil degradation sometimes leads to the loss of its functions, which is an irreversible process on a lifetime scale. The area covered by fertile soil decreases as it is exposed to anthropogenic activities. To meet the demand for the reconnection to food production in cities, it appears interesting to conceive functional Technosols using materials, waste, and by-products instead of extracting and transporting natural fertile soils. Technosols are soils with at least 20% of artifacts, a geomembrane or a technic hard rock. In the present work, two Technosols were designed and tested in a greenhouse experiment for a bio-intensive micro-gardening use. Their conception was based on the physico-chemical characteristics of soils known for their high agronomic potential for vegetable growing, as well as on the selection of available materials whose characteristics met the expectations. For one year, three aspects were studied to assess the ability of Technosols to support the production of food biomass. These include the pedological component by measuring the physico-chemical parameters of the Technosols; the biological component comprising several bio-indicator organisms of the soil fauna as well as ecophysiological indicators of the crops (photosynthetic and nitrogenous status) and their development; and the ecological engineering component by studying the ability of an ecosystem engineers to improve the fertility of the Technosols. After a few months, some pedogenetic processes were initiated and the indicators selected to evaluate the fertility of the constructed Technosols showed a good potential to support vegetable crops. |
2022Conférence ER4 Auteurs : Cheval, Pénélope; Vandoorne, Bertrand; Douay, Francis; Pruvot, Christelle; Pelfrêne, Aurélie Using constructed Technosols for urban bio-intensive market gardening:
assessment of their habitat and food biomass production function 11th Conference on Soils of Urban, Industrial, Traffic and Mining
Areas (SUITMA), 5-9 September 2022, Berlin (Germany), 2022, (ACTI). @conference{Cheval2022a,
title = {Using constructed Technosols for urban bio-intensive market gardening:
assessment of their habitat and food biomass production function},
author = {Pénélope Cheval and Bertrand Vandoorne and Francis Douay and Christelle Pruvot and Aurélie Pelfrêne},
year = {2022},
date = {2022-01-01},
booktitle = {11th Conference on Soils of Urban, Industrial, Traffic and Mining
Areas (SUITMA), 5-9 September 2022, Berlin (Germany)},
abstract = {Soil is an essential component of terrestrial ecosystems as it provides many functions and ecosystem services. Soil is the product of various physical, chemical, and biological processes that take place over thousands to millions of years. As a result, soil is a non-renewable resource on a human lifetime scale. In urban areas, soil undergoes many anthropogenic pressures resulting from land development, which sometimes leads to a degradation of its quality along with a partial or total loss of its functions and ecosystem services. Consequently, the areas covered by fertile soils in urban and peri-urban environments are decreasing as they are reclaimed. Urban land-use policy is evolving and aims to enhance projects that reconnect food production in urban areas. As cities have available unused materials, wastes and by-products, it seems interesting to consider using them for the conception of Technosols for urban vegetable production. Technosols are soils with at least 20% of artifacts, a geomembrane, or a technic hard rock. In the present work, two constructed Technosols were designed and tested in a greenhouse experiment for market gardening. Their conception was based on the physico-chemical characteristics of soils known for their high agronomic potential for vegetable growing, as well as on the selection of available materials whose characteristics met the expectations (e.g., uncontaminated materials, locally available and sustainably supplied). During a one-year period, three aspects were studied to evaluate the capacity of the Technosols to ensure habitat (for specific soil fauna organisms selected regarding their ability to be suitable indicators of the quality of their environment) and food biomass production functions. First, the pedological component was examined by measuring the physico-chemical parameters of the Technosols; secondly the study focused on the characterization of the biological component, comprising several bio-indicator organisms of the soil fauna as well as eco-physiological indicators of the crops (photosynthetic and nitrogenous status) and their development; finally, the ecological engineering component was analyzed by studying the ability of an ecosystem engineer (Lumbricus terrestris) to improve the fertility of the Technosols. After a few months, some pedogenetic processes were initiated (e.g., settlement, weathering of parent materials) and the indicators selected to evaluate the fertility of the constructed Technosols (physico-chemical and biological parameters) showed a good potential to support vegetable crops. Upon establishment of the constructed Technosols, some of the selected soil fauna bioindicators were also able to sustain their fitness, suggesting the initiation of a future trophic web.},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Soil is an essential component of terrestrial ecosystems as it provides many functions and ecosystem services. Soil is the product of various physical, chemical, and biological processes that take place over thousands to millions of years. As a result, soil is a non-renewable resource on a human lifetime scale. In urban areas, soil undergoes many anthropogenic pressures resulting from land development, which sometimes leads to a degradation of its quality along with a partial or total loss of its functions and ecosystem services. Consequently, the areas covered by fertile soils in urban and peri-urban environments are decreasing as they are reclaimed. Urban land-use policy is evolving and aims to enhance projects that reconnect food production in urban areas. As cities have available unused materials, wastes and by-products, it seems interesting to consider using them for the conception of Technosols for urban vegetable production. Technosols are soils with at least 20% of artifacts, a geomembrane, or a technic hard rock. In the present work, two constructed Technosols were designed and tested in a greenhouse experiment for market gardening. Their conception was based on the physico-chemical characteristics of soils known for their high agronomic potential for vegetable growing, as well as on the selection of available materials whose characteristics met the expectations (e.g., uncontaminated materials, locally available and sustainably supplied). During a one-year period, three aspects were studied to evaluate the capacity of the Technosols to ensure habitat (for specific soil fauna organisms selected regarding their ability to be suitable indicators of the quality of their environment) and food biomass production functions. First, the pedological component was examined by measuring the physico-chemical parameters of the Technosols; secondly the study focused on the characterization of the biological component, comprising several bio-indicator organisms of the soil fauna as well as eco-physiological indicators of the crops (photosynthetic and nitrogenous status) and their development; finally, the ecological engineering component was analyzed by studying the ability of an ecosystem engineer (Lumbricus terrestris) to improve the fertility of the Technosols. After a few months, some pedogenetic processes were initiated (e.g., settlement, weathering of parent materials) and the indicators selected to evaluate the fertility of the constructed Technosols (physico-chemical and biological parameters) showed a good potential to support vegetable crops. Upon establishment of the constructed Technosols, some of the selected soil fauna bioindicators were also able to sustain their fitness, suggesting the initiation of a future trophic web. |
2022Conférence ER4 Auteurs : Pelfrêne, Aurélie Bioaccessibilité des polluants : Apport à l’évaluation de l’exposition
des populations vivant sur des sites contaminés Cérémonie d’entrée des nouveaux associés de la SCIC Crisalid, 31
mai 2022, 2022, (COM). @conference{Pelfrene2022,
title = {Bioaccessibilité des polluants : Apport à l’évaluation de l’exposition
des populations vivant sur des sites contaminés},
author = {Aurélie Pelfrêne},
year = {2022},
date = {2022-01-01},
booktitle = {Cérémonie d’entrée des nouveaux associés de la SCIC Crisalid, 31
mai 2022},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2022Conférence ER4 Auteurs : Schnackenberg, Ashley; Bidar, Géraldine; Bert, Valérie; Cannavo, Patrice; Détriché, Sébastien; Douay, Francis; Guenon, René; Jean-Soro, Liliane; Kohli, Alice; Lebeau, Thierry; Perronnet, Karen; Vidal-Beaudet, Laure; Waterlot, Christophe; Pelfrêne, Aurélie Effects of amendments on the mobility, bioaccessibility, and phytoavailability of As, Cd, Pb, and Zn in contaminated urban kitchen garden soils 11th Conference on Soils of Urban, Industrial, Traffic and Mining Areas (SUITMA), 5-9 September 2022, Berlin (Germany), 2022, (ACTI). @conference{Schnackenberg2022,
title = {Effects of amendments on the mobility, bioaccessibility, and phytoavailability of As, Cd, Pb, and Zn in contaminated urban kitchen garden soils},
author = {Ashley Schnackenberg and Géraldine Bidar and Valérie Bert and Patrice Cannavo and Sébastien Détriché and Francis Douay and René Guenon and Liliane Jean-Soro and Alice Kohli and Thierry Lebeau and Karen Perronnet and Laure Vidal-Beaudet and Christophe Waterlot and Aurélie Pelfrêne},
year = {2022},
date = {2022-01-01},
booktitle = {11th Conference on Soils of Urban, Industrial, Traffic and Mining Areas (SUITMA), 5-9 September 2022, Berlin (Germany)},
abstract = {Urban gardening is a growing trend that responds to the need for nature in cities, a growing movement towards healthy and sustainable eating and food production, and difficult economic and societal contexts. Both private and community gardens in these areas are often on urban wastelands, along roads, highways, or railways, near industrial sites, and have even sometimes earned the term “guerrilla gardens” for their lack of agronomic regulation. In France, many urban gardens are associated with varying levels of inorganic contaminants hailing from anthropogenic activity or geogenic metal(loid) presence. Moderately metal(loid)- contaminated urban kitchen garden soils can benefit from gentle remediation options including the use of soil amendments, which are able to improve soil function and agronomic quality while decreasing environmental and human health risk. This study first analyses the effects of common doses of a various commercialized soil amendments on the mobility of metalloid(s) in contaminated urban kitchen garden soils. Fourteen different amendments and amendment mixes were tested on three kitchen garden soils with diverse sources of anthropogenic or geogenous contamination and varying physico-chemical characteristics. Amendments from four differing categories were tested, including i) organic amendments like composts, ii) natural fertilizers such as bone meal, crushed horn, and organic poultry manure fertilizer, iii) calcareous amendments including two different limes, and iv) natural siliceous and alumino-silicate amendments, including diatomaceous earth and zeolite. Amendments at varying common doses were evaluated via chemical extractions on their ability to reduce the mobility of metallic elements after multiple weeks of maturation at a constant humidity and temperature. The most pertinent of these amendments were then chosen to be tested in conjunction with a vegetal model grown upon the amended soils in greenhouse conditions. 05.09.– 09.09 2022 Berlin, Germany Changes in physico-chemical soil characteristics, mobility and bioaccessibility of metal(loid)s in the soil, and phytoavailability in the lettuce were then tested. Mobility and bioaccessible metal(loid)s were evaluated with 0.05 M EDTA buffered at a pH of 7, an ammonium nitrate extraction, a 4-phase sequential extraction, and a UBM bioaccessibility test. Phytoavailability was determined using pseudo-total soil and plant metal(loid) contents. The study results show that it is possible to reduce both extractable and phytoavailable metal(oid)s with amendment addition. However, variable effects are seen according to the contaminated soil tested, and differences arise in the presence of a plant model.},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Urban gardening is a growing trend that responds to the need for nature in cities, a growing movement towards healthy and sustainable eating and food production, and difficult economic and societal contexts. Both private and community gardens in these areas are often on urban wastelands, along roads, highways, or railways, near industrial sites, and have even sometimes earned the term “guerrilla gardens” for their lack of agronomic regulation. In France, many urban gardens are associated with varying levels of inorganic contaminants hailing from anthropogenic activity or geogenic metal(loid) presence. Moderately metal(loid)- contaminated urban kitchen garden soils can benefit from gentle remediation options including the use of soil amendments, which are able to improve soil function and agronomic quality while decreasing environmental and human health risk. This study first analyses the effects of common doses of a various commercialized soil amendments on the mobility of metalloid(s) in contaminated urban kitchen garden soils. Fourteen different amendments and amendment mixes were tested on three kitchen garden soils with diverse sources of anthropogenic or geogenous contamination and varying physico-chemical characteristics. Amendments from four differing categories were tested, including i) organic amendments like composts, ii) natural fertilizers such as bone meal, crushed horn, and organic poultry manure fertilizer, iii) calcareous amendments including two different limes, and iv) natural siliceous and alumino-silicate amendments, including diatomaceous earth and zeolite. Amendments at varying common doses were evaluated via chemical extractions on their ability to reduce the mobility of metallic elements after multiple weeks of maturation at a constant humidity and temperature. The most pertinent of these amendments were then chosen to be tested in conjunction with a vegetal model grown upon the amended soils in greenhouse conditions. 05.09.– 09.09 2022 Berlin, Germany Changes in physico-chemical soil characteristics, mobility and bioaccessibility of metal(loid)s in the soil, and phytoavailability in the lettuce were then tested. Mobility and bioaccessible metal(loid)s were evaluated with 0.05 M EDTA buffered at a pH of 7, an ammonium nitrate extraction, a 4-phase sequential extraction, and a UBM bioaccessibility test. Phytoavailability was determined using pseudo-total soil and plant metal(loid) contents. The study results show that it is possible to reduce both extractable and phytoavailable metal(oid)s with amendment addition. However, variable effects are seen according to the contaminated soil tested, and differences arise in the presence of a plant model. |
2022Article de journal ER4 Auteurs : Schnackenberg, Ashley; Bidar, Géraldine; Bert, Valérie; Cannavo, Patrice; Détriché, Sébastien; Douay, Francis; Guenon, René; Jean-Soro, Liliane; Kohli, Alice; Lebeau, Thierry; Perronnet, Karen; Vidal-Beaudet, Laure; Waterlot, Christophe; Pelfrêne, Aurélie Effects of Inorganic and Organic Amendments on the Predicted Bioavailability of As, Cd, Pb and Zn in Kitchen Garden Soils Advances in Environmental and Engineering Research, vol. 3, p. 1 - 1, 2022, (ACL). @article{schnackenberg:hal-03583334,
title = {Effects of Inorganic and Organic Amendments on the Predicted Bioavailability of As, Cd, Pb and Zn in Kitchen Garden Soils},
author = {Ashley Schnackenberg and Géraldine Bidar and Valérie Bert and Patrice Cannavo and Sébastien Détriché and Francis Douay and René Guenon and Liliane Jean-Soro and Alice Kohli and Thierry Lebeau and Karen Perronnet and Laure Vidal-Beaudet and Christophe Waterlot and Aurélie Pelfrêne},
url = {https://hal.archives-ouvertes.fr/hal-03583334},
doi = {10.21926/aeer.2201004},
year = {2022},
date = {2022-02-01},
urldate = {2022-02-01},
journal = {Advances in Environmental and Engineering Research},
volume = {3},
pages = {1 - 1},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
|
2021Article de journal ER4 Auteurs : Glorennec, Philippe; Shendell, Derek-G.; Rasmussen, Pate E; Waeber, Roger; Egeghy, Peter; Azuma, Kenichi; Pelfrêne, Aurélie; Le-Bot, Barbara; Esteve, Williams; Perouel, Guillaume; Pernelet-Joly, Valérie; Noack, Yves; Delannoy, Matthieu; Keirsbulck, Marion; Mandin, Corinne Towards setting public health guidelines for chemicals in indoor settled dust? Indoor Air, vol. 31, no. 1, p. 112-115, 2021, (ACL). @article{Glorennec2021,
title = {Towards setting public health guidelines for chemicals in indoor settled dust?},
author = {Philippe Glorennec and Derek-G. Shendell and Pate E Rasmussen and Roger Waeber and Peter Egeghy and Kenichi Azuma and Aurélie Pelfrêne and Barbara Le-Bot and Williams Esteve and Guillaume Perouel and Valérie Pernelet-Joly and Yves Noack and Matthieu Delannoy and Marion Keirsbulck and Corinne Mandin},
year = {2021},
date = {2021-01-01},
journal = {Indoor Air},
volume = {31},
number = {1},
pages = {112-115},
abstract = {Indoor settled dust may result in substantial human exposure to chemicals,
especially by ingestion following hand‐to‐mouth or hand‐to‐object‐to‐mouth
contact. As with other environmental media related to exposure, dust
may thus be subject to regulation. An international scientific workshop
was convened in Paris in September 2019firstly to assess the relevance
for public health of setting guidelines for indoor settled dust,
and secondly to discuss scientific and technical challenges related
to such guidelines. The main discussions and conclusions, with consensus
achieved, are reported herein. Discussions concernedgeneral considerations,objectives
and definitions, relevance for a health‐based guideline, units of
measure, and finally derivation of the guideline.These points should
be addressed when consideringan indoor settled dust guideline as
part of a policy to reduce exposure indoors to a given chemical or
group of chemicals.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Indoor settled dust may result in substantial human exposure to chemicals,
especially by ingestion following hand‐to‐mouth or hand‐to‐object‐to‐mouth
contact. As with other environmental media related to exposure, dust
may thus be subject to regulation. An international scientific workshop
was convened in Paris in September 2019firstly to assess the relevance
for public health of setting guidelines for indoor settled dust,
and secondly to discuss scientific and technical challenges related
to such guidelines. The main discussions and conclusions, with consensus
achieved, are reported herein. Discussions concernedgeneral considerations,objectives
and definitions, relevance for a health‐based guideline, units of
measure, and finally derivation of the guideline.These points should
be addressed when consideringan indoor settled dust guideline as
part of a policy to reduce exposure indoors to a given chemical or
group of chemicals. |
2021Article de journal ER4 Auteurs : Perouel, Guillaume; Keirsbulck, Marion; Chaigneau, Thomas; Delannoy, Matthieu; Esteve, Williams; Bot, Barbara Le; Noack, Yves; Pelfrêne, Aurélie; Glorennec, Philippe Exposure assessment and reference values for settled dust in indoor environments Environnement Risques Santé, vol. 20, no. 4, p. 383–388, 2021. @article{Perouel2021,
title = {Exposure assessment and reference values for settled dust in indoor environments},
author = {Guillaume Perouel and Marion Keirsbulck and Thomas Chaigneau and Matthieu Delannoy and Williams Esteve and Barbara Le Bot and Yves Noack and Aurélie Pelfrêne and Philippe Glorennec},
doi = {10.1684/ers.2021.1569},
year = {2021},
date = {2021-08-01},
journal = {Environnement Risques Santé},
volume = {20},
number = {4},
pages = {383--388},
publisher = {John Libbey Eurotext},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
|
2021Article de journal ER4 Auteurs : Louzon, Maxime; Pauget, Benjamin; Pelfrêne, Aurélie; Gimbert, Frédéric; Vaufleury, Anette Combining human and snail indicators for an integrative risk assessment of metal(loid)-contaminated soils Journal of Hazardous Materials, vol. 409, p. 124182, 2021, ISSN: 0304-3894, (ACL). @article{LOUZON2021124182,
title = {Combining human and snail indicators for an integrative risk assessment of metal(loid)-contaminated soils},
author = {Maxime Louzon and Benjamin Pauget and Aurélie Pelfrêne and Frédéric Gimbert and Anette Vaufleury },
url = {https://www.sciencedirect.com/science/article/pii/S0304389420321725},
doi = {https://doi.org/10.1016/j.jhazmat.2020.124182},
issn = {0304-3894},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Journal of Hazardous Materials},
volume = {409},
pages = {124182},
abstract = {With the new soil uses such as land restoration and to protect wilderness, the human health risk assessment (HHRA) and environmental risk assessment (ERA) should be combined. Based on the relationships demonstrated between an indicator of soil quality, the land snail, and human exposure, the aim of this study is to examine the snail and human risk indicators for twenty-nine soils contaminated by metal(loid)s. HHRA was evaluated by both hazard quotient and carcinogenic risk. When the human health indicators were ranked as uncertain, they were weighted by bioaccessibility to refine the risk assessment. The ERA was performed with risk coefficient after ex situ snail exposure. The results showed strong and novel relationships between human health and environmental risk indicators that had never been found before. For 62% of the soils, both indicators revealed either a confirmed risk or an uncertain level of risk. Overall pollutants present greater risk for human than for environment, with 55 vs 28% of the studied soils classified in the proven risk, respectively. An original integrative risk assessment of polluted soils has been proposed, that shall help setting up relevant strategies to manage contaminated soils considering not only human but also environmental indicators of risk.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
With the new soil uses such as land restoration and to protect wilderness, the human health risk assessment (HHRA) and environmental risk assessment (ERA) should be combined. Based on the relationships demonstrated between an indicator of soil quality, the land snail, and human exposure, the aim of this study is to examine the snail and human risk indicators for twenty-nine soils contaminated by metal(loid)s. HHRA was evaluated by both hazard quotient and carcinogenic risk. When the human health indicators were ranked as uncertain, they were weighted by bioaccessibility to refine the risk assessment. The ERA was performed with risk coefficient after ex situ snail exposure. The results showed strong and novel relationships between human health and environmental risk indicators that had never been found before. For 62% of the soils, both indicators revealed either a confirmed risk or an uncertain level of risk. Overall pollutants present greater risk for human than for environment, with 55 vs 28% of the studied soils classified in the proven risk, respectively. An original integrative risk assessment of polluted soils has been proposed, that shall help setting up relevant strategies to manage contaminated soils considering not only human but also environmental indicators of risk. |
2021Article de journal ER4 Auteurs : Nsanganwimana, Florien; Souki, Karim Suhail Al; Waterlot, Christophe; Douay, Francis; Pelfrêne, Aurélie; Ridošková, Andrea; Louvel, Brice; Pourrut, Bertrand Potentials of Miscanthus x giganteus for phytostabilization of trace element-contaminated soils: Ex situ experiment Ecotoxicology and Environmental Safety, vol. 214, p. 112125, 2021, ISSN: 0147-6513, (ACL). @article{NSANGANWIMANA2021112125,
title = {Potentials of Miscanthus x giganteus for phytostabilization of trace element-contaminated soils: Ex situ experiment},
author = {Florien Nsanganwimana and Karim Suhail Al Souki and Christophe Waterlot and Francis Douay and Aurélie Pelfrêne and Andrea Ridošková and Brice Louvel and Bertrand Pourrut},
url = {https://www.sciencedirect.com/science/article/pii/S0147651321002360},
doi = {https://doi.org/10.1016/j.ecoenv.2021.112125},
issn = {0147-6513},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Ecotoxicology and Environmental Safety},
volume = {214},
pages = {112125},
abstract = {Phytomanagement is proposed as a cost-effective and environmentally-friendly suggestion for sustainable use of large metal-contaminated areas. In the current work, the energy crop miscanthus (Miscanthus × giganteus) was grown in ex situ conditions on agricultural soils presenting a Cd, Pb and Zn contamination gradient. After 93 days of culture, shoot and root growth parameters were measured. Soils and plants were sampled as well to study the TE accumulation in miscanthus and the effects of this plant on TE mobility in soils. Results demonstrated that miscanthus growth depended more on the soils silt content rather than TE-contamination level. Moreover, soil organic carbon at T93 increased in the soils after miscanthus cultivation by 25.5–45.3%, whereas CaCl2-extractible TEs decreased due to complex rhizosphere processes driving plant mineral uptake, and organic carbon inputs into the rhizosphere. In the contaminated soils, miscanthus accumulated Cd, Pb and Zn mainly in roots (BCF in roots: Cd " Zn > Pb), while strongly reducing the transfer of these elements from soil to all organs and from roots to rhizomes, stems and leaves (average TFs: 0.01–0.06, 0.11–1.15 and 0.09–0.79 corresponding to Cd, Pb and Zn respectively). Therefore, miscanthus could be considered a TE-excluder, hence a potential candidate crop for coupling phytostabilization and biomass production on the studied Metaleurop TE-contaminated soils.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Phytomanagement is proposed as a cost-effective and environmentally-friendly suggestion for sustainable use of large metal-contaminated areas. In the current work, the energy crop miscanthus (Miscanthus × giganteus) was grown in ex situ conditions on agricultural soils presenting a Cd, Pb and Zn contamination gradient. After 93 days of culture, shoot and root growth parameters were measured. Soils and plants were sampled as well to study the TE accumulation in miscanthus and the effects of this plant on TE mobility in soils. Results demonstrated that miscanthus growth depended more on the soils silt content rather than TE-contamination level. Moreover, soil organic carbon at T93 increased in the soils after miscanthus cultivation by 25.5–45.3%, whereas CaCl2-extractible TEs decreased due to complex rhizosphere processes driving plant mineral uptake, and organic carbon inputs into the rhizosphere. In the contaminated soils, miscanthus accumulated Cd, Pb and Zn mainly in roots (BCF in roots: Cd " Zn > Pb), while strongly reducing the transfer of these elements from soil to all organs and from roots to rhizomes, stems and leaves (average TFs: 0.01–0.06, 0.11–1.15 and 0.09–0.79 corresponding to Cd, Pb and Zn respectively). Therefore, miscanthus could be considered a TE-excluder, hence a potential candidate crop for coupling phytostabilization and biomass production on the studied Metaleurop TE-contaminated soils. |
2021Article de journal ER4 Auteurs : Perouel, Guillaume; Keirsbulck, Marion; Chaigneau, Thomas; Delannoy, Matthieu; Esteve, Williams; Bot, Barbara Le; Noack, Yves; Pelfrêne, Aurélie; Glorennec, Philippe Évaluation de l’exposition et valeurs de référence pour les poussières sédimentées dans les environnements intérieurs Environnement, Risques & Santé, vol. 20, no. 4, p. 383–388, 2021, ISSN: 1635-0421, (ACL). @article{guillaume_perouel_evaluation_2021,
title = {Évaluation de l’exposition et valeurs de référence pour les poussières sédimentées dans les environnements intérieurs},
author = {Guillaume Perouel and Marion Keirsbulck and Thomas Chaigneau and Matthieu Delannoy and Williams Esteve and Barbara Le Bot and Yves Noack and Aurélie Pelfrêne and Philippe Glorennec},
doi = {10.1684/ers.2021.1569},
issn = {1635-0421},
year = {2021},
date = {2021-07-01},
urldate = {2021-07-01},
journal = {Environnement, Risques & Santé},
volume = {20},
number = {4},
pages = {383--388},
abstract = {textlessptextgreaterLes évaluations des risques sanitaires des substances chimiques considèrent de plus en plus fréquemment les expositions agrégées et/ou cumulées afin de caractériser de manière la plus réaliste les risques sanitaires pour la population.textless/ptextgreatertextlessptextgreaterL’exposition environnementale aux substances chimiques textitvia la poussière sédimentée sur les surfaces intérieures doit-elle être prise en compte et de quelle manière ?textless/ptextgreatertextlessptextgreaterLa population est exposée aux substances chimiques présentes dans la poussière sédimentée par ingestion, inhalation et contact cutané. L’ingestion semble la voie d’exposition la plus importante, et la seule à pouvoir être estimée au vu des connaissances actuelles. Pour la mesure, il est recommandé d’utiliser la technique de prélèvement par aspiration sur une surface déterminée, suivie d’un tamisage à 250 μm (taille maximum des particules adhérant aux mains) afin de documenter les concentrations massique et surfacique. La mesure de la bioaccessibilité orale permettrait de mieux estimer l’exposition mais les méthodes ne sont pas validées à ce jour pour la majorité des composés. Les valeurs guides pour les poussières intérieures (VGPI) sont pertinentes si l’exposition textitvia la poussière est non négligeable pour une fraction de la population. Elles pourraient être élaborées simplement en allouant à la poussière une fraction de la valeur toxicologique de référence.textless/ptextgreater},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
textlessptextgreaterLes évaluations des risques sanitaires des substances chimiques considèrent de plus en plus fréquemment les expositions agrégées et/ou cumulées afin de caractériser de manière la plus réaliste les risques sanitaires pour la population.textless/ptextgreatertextlessptextgreaterL’exposition environnementale aux substances chimiques textitvia la poussière sédimentée sur les surfaces intérieures doit-elle être prise en compte et de quelle manière ?textless/ptextgreatertextlessptextgreaterLa population est exposée aux substances chimiques présentes dans la poussière sédimentée par ingestion, inhalation et contact cutané. L’ingestion semble la voie d’exposition la plus importante, et la seule à pouvoir être estimée au vu des connaissances actuelles. Pour la mesure, il est recommandé d’utiliser la technique de prélèvement par aspiration sur une surface déterminée, suivie d’un tamisage à 250 μm (taille maximum des particules adhérant aux mains) afin de documenter les concentrations massique et surfacique. La mesure de la bioaccessibilité orale permettrait de mieux estimer l’exposition mais les méthodes ne sont pas validées à ce jour pour la majorité des composés. Les valeurs guides pour les poussières intérieures (VGPI) sont pertinentes si l’exposition textitvia la poussière est non négligeable pour une fraction de la population. Elles pourraient être élaborées simplement en allouant à la poussière une fraction de la valeur toxicologique de référence.textless/ptextgreater |
2021Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Douay, Francis La pollution des sols des potagers et la production de fruits et de légumes Jardins de France, no. 662, 2021, (ACLN). @article{PelfreneDouay2021,
title = {La pollution des sols des potagers et la production de fruits et de légumes},
author = {Aurélie Pelfrêne and Francis Douay},
url = {https://www.jardinsdefrance.org/la-pollution-des-sols-des-potagers-et-la-production-de-fruits-et-de-legumes/},
year = {2021},
date = {2021-01-01},
journal = {Jardins de France},
number = {662},
note = {ACLN},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
|
2021Article de journal ER4 Auteurs : Glorennec, Philippe; Shendell, Derek G.; Rasmussen, Pat E.; Waeber, Roger; Egeghy, Peter; Azuma, Kenichi; Pelfrêne, Aurélie; Bot, Barbara Le; Esteve, Williams; Perouel, Guillaume; Pernelet-Joly, Valérie; Noack, Y.; Delannoy, Mathieu; Keirsbulck, Marion; Mandin, Corinne Toward setting public health guidelines for chemicals in indoor settled dust? Indoor Air, vol. 31, no. 1, p. 112-115, 2021, (ACL). @article{glorennec:hal-02926293,
title = {Toward setting public health guidelines for chemicals in indoor settled dust?},
author = {Philippe Glorennec and Derek G. Shendell and Pat E. Rasmussen and Roger Waeber and Peter Egeghy and Kenichi Azuma and Aurélie Pelfrêne and Barbara Le Bot and Williams Esteve and Guillaume Perouel and Valérie Pernelet-Joly and Y. Noack and Mathieu Delannoy and Marion Keirsbulck and Corinne Mandin},
url = {https://hal.archives-ouvertes.fr/hal-02926293},
doi = {10.1111/ina.12722},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Indoor Air},
volume = {31},
number = {1},
pages = {112-115},
publisher = {Wiley},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
|
2021Conférence ER4 Auteurs : Pelfrêne, Aurélie Simplified method for oral bioaccessibility of metal(loid)s in soils SOILveR coffee break meeting, Soil and land research funding platform for Europe, Online, 2021, (COM). @conference{Pelfrene2021,
title = {Simplified method for oral bioaccessibility of metal(loid)s in soils},
author = {Aurélie Pelfrêne},
year = {2021},
date = {2021-05-31},
urldate = {2021-05-31},
booktitle = {SOILveR coffee break meeting, Soil and land research funding platform for Europe},
address = {Online},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2020Article de journal ER4 Auteurs : Louzon, Maxime; Pelfrêne, Aurélie; Pauget, Benjamin; Gimbert, Frédéric; Crini, Nadia; Douay, Francis; De-Vaufleury, Annette Bioaccessibility of metal(loid)s in soils to humans and their bioavailability to snails: a way to associate human health and ecotoxicological risk assessment? Journal of Hazardous Materials, vol. 384, p. 121432, 2020, (ACL). @article{Louzon2020,
title = {Bioaccessibility of metal(loid)s in soils to humans and their bioavailability to snails: a way to associate human health and ecotoxicological risk assessment?},
author = {Maxime Louzon and Aurélie Pelfrêne and Benjamin Pauget and Frédéric Gimbert and Nadia Crini and Francis Douay and Annette De-Vaufleury},
year = {2020},
date = {2020-01-01},
journal = {Journal of Hazardous Materials},
volume = {384},
pages = {121432},
abstract = {Human health risk assessment (HHRA) and ecotoxicological risk assessment
(ERA) of contaminated soils are frequently performed separately and
based on total soil concentrations without considering the concepts
of mobility, bioaccessibility and bioavailability. However, some
chemical and biological assays rarely used in combination can be
applied to more accurately assess the exposure of organisms to metal(loid)s
and thus to better estimate the links between soil contamination
and effects. For humans, the unified bioaccessibility method (UBM)
assesses oral bioaccessibility, while for soil fauna such as land
snails, the bioaccumulation test reflects the bioavailability of
contaminants. The aim of this study is to explore the relationship
between oral bioaccessibility and the bioavailability of arsenic,
cadmium and lead in twenty-nine contaminated soils. The results show
a modulation of bioaccumulation and bioaccessibility of metal(loid)s
by soil physicochemical parameters (organic matter especially). For
the three metal(loid)s studied, strong relationships were modelled
between the UBM and snail tests (0.77 < r²adj.<0.95), depending on
the parameters of the linear regressions (contaminant and phases
of the UBM test). The original models proposed demonstrate the feasibility
of linking bioaccessibility to humans and bioavailability to snails
and the relevance of their association for an integrative risk assessment
of contaminated soils.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Human health risk assessment (HHRA) and ecotoxicological risk assessment
(ERA) of contaminated soils are frequently performed separately and
based on total soil concentrations without considering the concepts
of mobility, bioaccessibility and bioavailability. However, some
chemical and biological assays rarely used in combination can be
applied to more accurately assess the exposure of organisms to metal(loid)s
and thus to better estimate the links between soil contamination
and effects. For humans, the unified bioaccessibility method (UBM)
assesses oral bioaccessibility, while for soil fauna such as land
snails, the bioaccumulation test reflects the bioavailability of
contaminants. The aim of this study is to explore the relationship
between oral bioaccessibility and the bioavailability of arsenic,
cadmium and lead in twenty-nine contaminated soils. The results show
a modulation of bioaccumulation and bioaccessibility of metal(loid)s
by soil physicochemical parameters (organic matter especially). For
the three metal(loid)s studied, strong relationships were modelled
between the UBM and snail tests (0.77 < r²adj.<0.95), depending on
the parameters of the linear regressions (contaminant and phases
of the UBM test). The original models proposed demonstrate the feasibility
of linking bioaccessibility to humans and bioavailability to snails
and the relevance of their association for an integrative risk assessment
of contaminated soils. |
2020Article de journal ER4 Auteurs : Janus, Adeline; Waterlot, Christophe; Douay, Francis; Pelfrêne, Aurélie Ex situ evaluation of the effects of biochars on environmental and toxicological availabilities of metals and polycyclic aromatic hydrocarbons Environmental Science and Pollution Research, vol. 27, p. 1852–1869, 2020, (ACL). @article{Janus2020,
title = {Ex situ evaluation of the effects of biochars on environmental and toxicological availabilities of metals and polycyclic aromatic hydrocarbons},
author = {Adeline Janus and Christophe Waterlot and Francis Douay and Aurélie Pelfrêne},
year = {2020},
date = {2020-01-01},
journal = {Environmental Science and Pollution Research},
volume = {27},
pages = {1852–1869},
abstract = {The present study experimented five biochars, one made from wood (400
°C, 12 h) and four made from miscanthus cultivated on contaminated
soils (temperature 400/600 °C, duration 45/90 min). They were used
as amendments at a 2% application rate on soil, cultivated or not
cultivated with ryegrass, contaminated with (i) metals (Cd, Pb, and
Zn), (ii) eight polycyclic aromatic hydrocarbons (PAHs), and (iii)
a mix of metals and PAHs. The objectives were (i) to compare the
effectiveness of the five biochars on soil parameters and pollutant
availability and (ii) to determine the influence of soil multicontamination
and ryegrass cultivation on biochar effectiveness. The results showed
that biochar application did not necessarily lead to lower pollutant
extractability and metal bioaccessibility. However, differences were
highlighted between the biochars. The miscanthus biochars produced
at 600 °C (BM600) showed higher effectiveness at decreasing metal
extractability than the miscanthus biochars produced at 400 °C (BM400)
due to its better sorption characteristics. In addition, ryegrass
cultivation did not impact pollutant availability but modified metal
bioaccessibility, especially for the soil amended with the BM600
and the woody biochar. Moreover, the presence of PAHs also negatively
impacted the metal bioaccessibility in the soil amended with the
BM600, and, on the contrary, positively impacted it in the soil amended
with the BM400. Complementary studies are therefore necessary to
understand the mechanisms involved, particularly in a context where
soils requiring remediation operations are often multicontaminated
and vegetated.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The present study experimented five biochars, one made from wood (400
°C, 12 h) and four made from miscanthus cultivated on contaminated
soils (temperature 400/600 °C, duration 45/90 min). They were used
as amendments at a 2% application rate on soil, cultivated or not
cultivated with ryegrass, contaminated with (i) metals (Cd, Pb, and
Zn), (ii) eight polycyclic aromatic hydrocarbons (PAHs), and (iii)
a mix of metals and PAHs. The objectives were (i) to compare the
effectiveness of the five biochars on soil parameters and pollutant
availability and (ii) to determine the influence of soil multicontamination
and ryegrass cultivation on biochar effectiveness. The results showed
that biochar application did not necessarily lead to lower pollutant
extractability and metal bioaccessibility. However, differences were
highlighted between the biochars. The miscanthus biochars produced
at 600 °C (BM600) showed higher effectiveness at decreasing metal
extractability than the miscanthus biochars produced at 400 °C (BM400)
due to its better sorption characteristics. In addition, ryegrass
cultivation did not impact pollutant availability but modified metal
bioaccessibility, especially for the soil amended with the BM600
and the woody biochar. Moreover, the presence of PAHs also negatively
impacted the metal bioaccessibility in the soil amended with the
BM600, and, on the contrary, positively impacted it in the soil amended
with the BM400. Complementary studies are therefore necessary to
understand the mechanisms involved, particularly in a context where
soils requiring remediation operations are often multicontaminated
and vegetated. |
2020Article de journal ER4 Auteurs : Nguyen, Van-Xuan; Douay, Francis; Mamindy-Pajany, Yannick; Alary, Claire; Pelfrêne, Aurelie Environmental availability and oral bioaccessibility of Cd and Pb in anthroposols from dredged river sediments Environmental Science and Pollution Research, vol. 27, no. 1, p. 622-635, 2020, (ACL). @article{Nguyen2020,
title = {Environmental availability and oral bioaccessibility of Cd and Pb in anthroposols from dredged river sediments},
author = {Van-Xuan Nguyen and Francis Douay and Yannick Mamindy-Pajany and Claire Alary and Aurelie Pelfrêne},
year = {2020},
date = {2020-01-01},
journal = {Environmental Science and Pollution Research},
volume = {27},
number = {1},
pages = {622-635},
abstract = {Dredging and disposal of sediments onto land sites is a common practice
in urban and industrial areas that can present environmental and
health risks when the sediments contain metallic elements. The aim
of this study was to characterise and study the environmental and
toxicological availability of Cd and Pb in anthroposols from dredged
river sediments. To do this, 67 surface samples spread over 12 sediment
disposal sites in northern France were studied. The results showed
substantial heterogeneity for this matrix in terms of physicochemical
parameters and contamination degree; however, ascending hierarchical
clustering made it possible to classify the samples into eight groups.
For each group, the mobile fraction of Cd and Pb was studied using
single EDTA extraction, solid-phase distribution was analysed with
sequential extractions and toxicological availability was assessed
with the oral bioaccessibility test. The results showed that (i)
Cd had a higher environmental and toxicological availability than
Pb; (ii) this availability depends on the physicochemical characteristics
of the matrix; and (iii) it is necessary to take into account the
environmental and toxicological availability of contaminants when
requalifying these sites in order to propose appropriate management
measures. In the first years after sediment disposal, it would appear
that the environmental and toxicological availability of Cd and Pb
increased (from 52.5 to 71.8% and from 28.9 to 48.9%, respectively,
by using EDTA and from 50.2 to 68.5% for Cd with the bioaccessibility
test). Further studies would therefore be required to confirm this
trend and understand the mechanisms involved.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Dredging and disposal of sediments onto land sites is a common practice
in urban and industrial areas that can present environmental and
health risks when the sediments contain metallic elements. The aim
of this study was to characterise and study the environmental and
toxicological availability of Cd and Pb in anthroposols from dredged
river sediments. To do this, 67 surface samples spread over 12 sediment
disposal sites in northern France were studied. The results showed
substantial heterogeneity for this matrix in terms of physicochemical
parameters and contamination degree; however, ascending hierarchical
clustering made it possible to classify the samples into eight groups.
For each group, the mobile fraction of Cd and Pb was studied using
single EDTA extraction, solid-phase distribution was analysed with
sequential extractions and toxicological availability was assessed
with the oral bioaccessibility test. The results showed that (i)
Cd had a higher environmental and toxicological availability than
Pb; (ii) this availability depends on the physicochemical characteristics
of the matrix; and (iii) it is necessary to take into account the
environmental and toxicological availability of contaminants when
requalifying these sites in order to propose appropriate management
measures. In the first years after sediment disposal, it would appear
that the environmental and toxicological availability of Cd and Pb
increased (from 52.5 to 71.8% and from 28.9 to 48.9%, respectively,
by using EDTA and from 50.2 to 68.5% for Cd with the bioaccessibility
test). Further studies would therefore be required to confirm this
trend and understand the mechanisms involved. |
2020Article de journal ER4 Auteurs : Bidar, Géraldine; Pelfrêne, Aurélie; Schwartz, Christophe; Waterlot, Christophe; Sahmer, Karin; Marot, Franck; Douay, Francis Urban kitchen gardens: Effect of the soil contamination and parameters on the trace element accumulation in vegetables – A review Science of the Total Environment, vol. 738, p. 139569, 2020, (ACL). @article{Bidar2020,
title = {Urban kitchen gardens: Effect of the soil contamination and parameters on the trace element accumulation in vegetables – A review},
author = {Géraldine Bidar and Aurélie Pelfrêne and Christophe Schwartz and Christophe Waterlot and Karin Sahmer and Franck Marot and Francis Douay},
year = {2020},
date = {2020-01-01},
journal = {Science of the Total Environment},
volume = {738},
pages = {139569},
abstract = {Trace element contaminants in kitchen garden soils can contribute
to human exposure through the consumption of homegrown vegetables.
In urban areas, these soils can be contaminated to various degrees
by trace element (TE). They are characterized by a great variability
in their physicochemical parameters due to the high anthropization
level, the wide variety and combination of disturbance sources, aswell
as the diversity of cultivation practices and the large range of
contamination levels. Pollutants can be taken up by vegetables cultivated
in these soils and be concentrated in their edible parts. In this
review, the behavior of vegetables cultivated in contaminated kitchen
gardens is assessed through six examples of the most widely cultivated
vegetables (lettuce, tomato, bean, carrot, radish, potato). The role
of soil parameters that could influence the uptake of As, Cd, Cr,
Ni, Pb, and Zn by these vegetables is also discussed.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Trace element contaminants in kitchen garden soils can contribute
to human exposure through the consumption of homegrown vegetables.
In urban areas, these soils can be contaminated to various degrees
by trace element (TE). They are characterized by a great variability
in their physicochemical parameters due to the high anthropization
level, the wide variety and combination of disturbance sources, aswell
as the diversity of cultivation practices and the large range of
contamination levels. Pollutants can be taken up by vegetables cultivated
in these soils and be concentrated in their edible parts. In this
review, the behavior of vegetables cultivated in contaminated kitchen
gardens is assessed through six examples of the most widely cultivated
vegetables (lettuce, tomato, bean, carrot, radish, potato). The role
of soil parameters that could influence the uptake of As, Cd, Cr,
Ni, Pb, and Zn by these vegetables is also discussed. |
2020Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Sahmer, Karin; Waterlot, Christophe; Glorennec, Philippe; Douay, Francis; Le-Bot, Barbara Evaluation of single-extraction methods to estimate the oral bioaccessibility of metal(loid)s in soils Science of the Total Environment, vol. 727, p. 138553, 2020, (ACL). @article{Pelfrene2020,
title = {Evaluation of single-extraction methods to estimate the oral bioaccessibility of metal(loid)s in soils},
author = {Aurélie Pelfrêne and Karin Sahmer and Christophe Waterlot and Philippe Glorennec and Francis Douay and Barbara Le-Bot},
year = {2020},
date = {2020-01-01},
journal = {Science of the Total Environment},
volume = {727},
pages = {138553},
abstract = {Incidental ingestion of polluted soil particles exposes the population
to toxic metal(loid)s. To refine the methods of exposure and risk
assessment, it is relevant to use bioaccessible concentrations of
metal(loid)s determined via in vitro digestion methods. However,
some validated methods are complex and costly, involving high technical
skills and numerous reagents. The objective of the present study
was to evaluate the suitability of four simple chemical extractions
to mimic the bioaccessible fraction of As, Cd, and Pb in the gastric
(G) and gastrointestinal (GI) phases obtained using the validated
UBM (unified bioaccessibility method) test. Acetic acid (0.11 M),
citric acid (0.11M), EDTA (0.16 M), and hydrochloric acid (HCl, 0.65%)were
separately tested in 201 soil sampleswith a wide range of physicochemical
parameters and metal(loid)s concentrations. Significant linear relationships
were observed with HCl, EDTA, and to a lesser extent with citric
acid. For the cheaper HCl method, correlations with the UBM ranged
from 0.91 to 0.99 for the G phase and from 0.72 to 0.97 for the GI
phase. This test can be used at least as a first-tier screening to
assess the oral bioaccessibility of As, Cd, and Pb.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Incidental ingestion of polluted soil particles exposes the population
to toxic metal(loid)s. To refine the methods of exposure and risk
assessment, it is relevant to use bioaccessible concentrations of
metal(loid)s determined via in vitro digestion methods. However,
some validated methods are complex and costly, involving high technical
skills and numerous reagents. The objective of the present study
was to evaluate the suitability of four simple chemical extractions
to mimic the bioaccessible fraction of As, Cd, and Pb in the gastric
(G) and gastrointestinal (GI) phases obtained using the validated
UBM (unified bioaccessibility method) test. Acetic acid (0.11 M),
citric acid (0.11M), EDTA (0.16 M), and hydrochloric acid (HCl, 0.65%)were
separately tested in 201 soil sampleswith a wide range of physicochemical
parameters and metal(loid)s concentrations. Significant linear relationships
were observed with HCl, EDTA, and to a lesser extent with citric
acid. For the cheaper HCl method, correlations with the UBM ranged
from 0.91 to 0.99 for the G phase and from 0.72 to 0.97 for the GI
phase. This test can be used at least as a first-tier screening to
assess the oral bioaccessibility of As, Cd, and Pb. |
2020Conférence ER4 Auteurs : Pauget, Benjamin; Louzon, Maxime; Gimbert, Frédéric; Pelfrêne, Aurélie; De-Vaufleury, Annette La bioaccessibilité et la biodisponibilité, deux outils pour une évaluation des risques intégrative (projet COMBINE) Journée Technique sur les Risques environnementaux et reconversion des friches, Lyon, France, 6 novembre 2020, 2020, (COM). @conference{Pauget2020,
title = {La bioaccessibilité et la biodisponibilité, deux outils pour une évaluation des risques intégrative (projet COMBINE)},
author = {Benjamin Pauget and Maxime Louzon and Frédéric Gimbert and Aurélie Pelfrêne and Annette De-Vaufleury},
year = {2020},
date = {2020-01-01},
booktitle = {Journée Technique sur les Risques environnementaux et reconversion des friches, Lyon, France, 6 novembre 2020},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2020Conférence ER4 Auteurs : Pelfrêne, Aurélie Une méthode simplifiée pour estimer la bioaccessibilité orale des polluants métalliques dans les sols Journée Technique sur les Risques environnementaux et reconversion des friches, Lyon, France, 6 novembre 2020, 2020, (COM). @conference{Pelfrene2020a,
title = {Une méthode simplifiée pour estimer la bioaccessibilité orale des polluants métalliques dans les sols},
author = {Aurélie Pelfrêne},
year = {2020},
date = {2020-01-01},
booktitle = {Journée Technique sur les Risques environnementaux et reconversion des friches, Lyon, France, 6 novembre 2020},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2020Ouvrage ER4 Auteurs : Pelfrêne, Aurelie; Bidar, Géraldine; Détriché, Sébastien; Waterlot, Christophe; Pruvot, Christelle; Douay, Francis Spécificités des potagers en contexte (péri)urbain au lourd passé industriel 2020, (OS). @book{Pelfrene2020c,
title = {Spécificités des potagers en contexte (péri)urbain au lourd passé industriel},
author = {Aurelie Pelfrêne and Géraldine Bidar and Sébastien Détriché and Christophe Waterlot and Christelle Pruvot and Francis Douay},
year = {2020},
date = {2020-01-01},
booktitle = {in "Les sols urbains sont-ils cultivables ?" (Editions Quae, Collection Matière à débattres & décider)},
note = {OS},
keywords = {ER4},
pubstate = {published},
tppubtype = {book}
}
|
2020Conférence ER4 Auteurs : Louzon, Maxime; Pauget, Benjamin; Pelfrêne, Aurélie; Crini, Nadia; Gimbert, Frédéric; Douay, Francis; Amiot, Caroline; Rieffel, Dominique; De-Vaufleury, Annette COMBINE – Coupler des indicateurs chimiques et biologiques pour une évaluation intégrative des risques sanitaires et environnementaux Journée Technique sur les Risques environnementaux et reconversion des friches, Lyon, France, 6 novembre 2020, 2020, (COM). @conference{Louzon2020b,
title = {COMBINE – Coupler des indicateurs chimiques et biologiques pour une évaluation intégrative des risques sanitaires et environnementaux},
author = {Maxime Louzon and Benjamin Pauget and Aurélie Pelfrêne and Nadia Crini and Frédéric Gimbert and Francis Douay and Caroline Amiot and Dominique Rieffel and Annette De-Vaufleury},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
booktitle = {Journée Technique sur les Risques environnementaux et reconversion des friches, Lyon, France, 6 novembre 2020},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2019Article de journal ER4 Auteurs : Bidar, Géraldine; Pelfrêne, Aurélie; Louvel, Brice; Janus, Adeline; Douay, Francis Influence of amendments on metal environmental and toxicological availability in highly contaminated brownfield and agricultural soils Environmental Science and Pollution Research, vol. 26, p. 33086–33108, 2019, (ACL). @article{Bidar2019,
title = {Influence of amendments on metal environmental and toxicological availability in highly contaminated brownfield and agricultural soils},
author = {Géraldine Bidar and Aurélie Pelfrêne and Brice Louvel and Adeline Janus and Francis Douay},
year = {2019},
date = {2019-01-01},
journal = {Environmental Science and Pollution Research},
volume = {26},
pages = {33086–33108},
abstract = {The immobilizing effects of wood biochar (BW2%) and iron grit (Z1%)
applied alone or in combination (BW2% + Z1%) to agricultural (M750)
and brownfield (MAZ) soils highly contaminated by metals were assessed
in a greenhouse experiment. The results showed that Z1% and BW2%
+ Z1% were the most efficient amendments to reduce Cd, Cu, Pb, and
Zn mobility, environmental availability, and phytoavailability in
the M750 soil. The oxidation of Z1% allowed part of the Cu and Zn
pools present in exchangeable or carbonate-bound forms (labile fraction)
to complex in less mobile forms. In this soil, the metal chemical
extractions (0.01 M CaCl2 and 0.05 M EDTA) and the DGT (diffusive
gradient in thin films) devices to assess metal in soil solution
and soil pore water (SPW) also highlighted the immobilizing characteristic
of Z1%. In most cases, the addition of BW2% to Z1% (BW2% + Z1%) did
not improve this effect, except for the dissolved Pb and Zn concentrations
in the M750 soil solution. It was also observed that Cd, Pb, and
Zn passed throughout DGT mimicking the biological cell membrane were
reduced by all amendments of the M750 soil corroborating metal concentrations
measured in rye grass shoots. In the MAZ soil, metals were less available
as shown by their low extractability rate, low capacity of metal
resupply from the solid phase to pore water, and low phytoavailability.
The poor metal availability could be explained by the high levels
of carbonate and organic matter contents in this soil. Nevertheless,
a decrease of the Cu environmental availability and the Cu concentrations
in rye grass shoots grown on the MAZ soil was also observed in the
soil amended with Z1% alone or in combination with BW2%. From a health
point of view, the most effective amendment to reduce human exposure
through ingestion of soil particles for the M750 and MAZ soils was
BW2% for Cd and BW2% + Z1% for Pb. However, the presence of rye grass
minimized the amendments’ beneficial effects.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The immobilizing effects of wood biochar (BW2%) and iron grit (Z1%)
applied alone or in combination (BW2% + Z1%) to agricultural (M750)
and brownfield (MAZ) soils highly contaminated by metals were assessed
in a greenhouse experiment. The results showed that Z1% and BW2%
+ Z1% were the most efficient amendments to reduce Cd, Cu, Pb, and
Zn mobility, environmental availability, and phytoavailability in
the M750 soil. The oxidation of Z1% allowed part of the Cu and Zn
pools present in exchangeable or carbonate-bound forms (labile fraction)
to complex in less mobile forms. In this soil, the metal chemical
extractions (0.01 M CaCl2 and 0.05 M EDTA) and the DGT (diffusive
gradient in thin films) devices to assess metal in soil solution
and soil pore water (SPW) also highlighted the immobilizing characteristic
of Z1%. In most cases, the addition of BW2% to Z1% (BW2% + Z1%) did
not improve this effect, except for the dissolved Pb and Zn concentrations
in the M750 soil solution. It was also observed that Cd, Pb, and
Zn passed throughout DGT mimicking the biological cell membrane were
reduced by all amendments of the M750 soil corroborating metal concentrations
measured in rye grass shoots. In the MAZ soil, metals were less available
as shown by their low extractability rate, low capacity of metal
resupply from the solid phase to pore water, and low phytoavailability.
The poor metal availability could be explained by the high levels
of carbonate and organic matter contents in this soil. Nevertheless,
a decrease of the Cu environmental availability and the Cu concentrations
in rye grass shoots grown on the MAZ soil was also observed in the
soil amended with Z1% alone or in combination with BW2%. From a health
point of view, the most effective amendment to reduce human exposure
through ingestion of soil particles for the M750 and MAZ soils was
BW2% for Cd and BW2% + Z1% for Pb. However, the presence of rye grass
minimized the amendments’ beneficial effects. |
2019Article de journal ER4 Auteurs : Dumat, Camille; Pelfrêne, Aurélie; Shahid, Muhammad Environment-health link in a context of urban agricultures: studies of oral exposure to pollutants in order promote the human health Environmental Science and Pollution Research, vol. 26, no. 20, p. 20015-20017, 2019, (ACL). @article{Dumat2019,
title = {Environment-health link in a context of urban agricultures: studies of oral exposure to pollutants in order promote the human health},
author = {Camille Dumat and Aurélie Pelfrêne and Muhammad Shahid},
year = {2019},
date = {2019-01-01},
journal = {Environmental Science and Pollution Research},
volume = {26},
number = {20},
pages = {20015-20017},
abstract = {This ESPR special issue includes a selection of papers presented at
the international congress “Sustainable Urban Agriculture: Vector
for the Ecological Transition” (UA&ET), which is focused in a special
session on the link between environment and human health, and which
was held on June 2017 in Toulouse, France.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
This ESPR special issue includes a selection of papers presented at
the international congress “Sustainable Urban Agriculture: Vector
for the Ecological Transition” (UA&ET), which is focused in a special
session on the link between environment and human health, and which
was held on June 2017 in Toulouse, France. |
2019Conférence ER4 Auteurs : Le-Bot, Barbara; Glorennec, Philippe; Waterlot, Christophe; Douay, Francis; Pelfrêne, Aurélie Simplified method for oral bioaccessibility of metal(loid)s in soils and alternative to the Unified Barge Method International Societies of Exposure Science (ISES) and Indoor Air Quality and Climate (ISIAQ), 18-22 August 2019, Kaunas (Lithuania), 2019, (AFF). @conference{Le-Bot2019,
title = {Simplified method for oral bioaccessibility of metal(loid)s in soils and alternative to the Unified Barge Method},
author = {Barbara Le-Bot and Philippe Glorennec and Christophe Waterlot and Francis Douay and Aurélie Pelfrêne},
year = {2019},
date = {2019-01-01},
booktitle = {International Societies of Exposure Science (ISES) and Indoor Air Quality and Climate (ISIAQ), 18-22 August 2019, Kaunas (Lithuania)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2019Conférence ER4 Auteurs : Louzon, Maxime; Pelfrêne, Aurélie; Pauget, Benjamin; Gimbert, Frédéric; Crini, Nadia; Rieffel, Dominique; Amiot, Caroline; Douay, Francis; De-Vaufleury, Annette Assessment of metal(loid) bioavailability for landsnails and human bioaccessibility: a new pathway to build bridges between ecotoxicological and human health risk assessment of contaminated soils SETAC Europe, 29th Annual meeting, 26-30 May 2019, Helsinki (Finland), 2019, (ACTI). @conference{Louzon2019,
title = {Assessment of metal(loid) bioavailability for landsnails and human bioaccessibility: a new pathway to build bridges between ecotoxicological and human health risk assessment of contaminated soils},
author = {Maxime Louzon and Aurélie Pelfrêne and Benjamin Pauget and Frédéric Gimbert and Nadia Crini and Dominique Rieffel and Caroline Amiot and Francis Douay and Annette De-Vaufleury},
year = {2019},
date = {2019-01-01},
booktitle = {SETAC Europe, 29th Annual meeting, 26-30 May 2019, Helsinki (Finland)},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2019Conférence ER4 Auteurs : Louzon, Maxime; Pauget, Barbara; Gimbert, Frédéric; Pelfrêne, Aurélie; De-Vaufleury, Annette COMBINE – Coupler des indicateurs chimiques et biologiques pour une évaluation intégrative des risques sanitaires et environnementaux Journée technique « Prise en compte des fonctions écosystémiques du sol et du sous-sol en contexte de réaménagement urbain », 14 mai 2019, Lyon, 2019, (ACTN). @conference{Louzon2019a,
title = {COMBINE – Coupler des indicateurs chimiques et biologiques pour une évaluation intégrative des risques sanitaires et environnementaux},
author = {Maxime Louzon and Barbara Pauget and Frédéric Gimbert and Aurélie Pelfrêne and Annette De-Vaufleury},
year = {2019},
date = {2019-01-01},
booktitle = {Journée technique « Prise en compte des fonctions écosystémiques du sol et du sous-sol en contexte de réaménagement urbain », 14 mai 2019, Lyon},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2019Conférence ER4 Auteurs : Pelfrêne, Aurélie Simplified method for oral bioaccessibility of metal(loid)s in soils ISO/TC 190/SC 7/WG 4 meeting, 15 October 2019, Aveiro (Portugal), 2019, (ACTI). @conference{Pelfrene2019,
title = {Simplified method for oral bioaccessibility of metal(loid)s in soils},
author = {Aurélie Pelfrêne},
year = {2019},
date = {2019-01-01},
booktitle = {ISO/TC 190/SC 7/WG 4 meeting, 15 October 2019, Aveiro (Portugal)},
pages = {18pp},
abstract = {Objectives: Due to the complexity of in vitro methods , a simplification
of them might be a great interest for managers of Polluted Sites
and Soils Propose a first tier method as a decision making tool Evaluate
the potential suitability of chemical single extraction methods to
mimic the bioaccessible fraction of As, Cd and Pb in a wide range
of soils},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Objectives: Due to the complexity of in vitro methods , a simplification
of them might be a great interest for managers of Polluted Sites
and Soils Propose a first tier method as a decision making tool Evaluate
the potential suitability of chemical single extraction methods to
mimic the bioaccessible fraction of As, Cd and Pb in a wide range
of soils |
2019Conférence ER4 Auteurs : Pelfrêne, Aurélie; Le-Bot, Barbara; Waterlot, Christophe; Glorennec, Philippe; Sahmer, Karin; Douay, Francis Evaluation of four first tier methods to measure metal(loid) bioaccessibility in polluted soils SETAC Europe, 29th Annual meeting, 26-30 May 2019, Helsinki (Finland), 2019, (ACTI). @conference{Pelfrene2019a,
title = {Evaluation of four first tier methods to measure metal(loid) bioaccessibility in polluted soils},
author = {Aurélie Pelfrêne and Barbara Le-Bot and Christophe Waterlot and Philippe Glorennec and Karin Sahmer and Francis Douay},
year = {2019},
date = {2019-01-01},
booktitle = {SETAC Europe, 29th Annual meeting, 26-30 May 2019, Helsinki (Finland)},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2019Conférence ER4 Auteurs : Pelfrêne, Aurélie; Roussel, Hélène Méthode simplifiée pour la bioaccessibilité orale des métaux dans les sols Journée technique d’information et de retour d’expérience de la gestion des sites et sols pollués 7 novembre 2019, Paris, 2019, (COM). @conference{Pelfrene2019b,
title = {Méthode simplifiée pour la bioaccessibilité orale des métaux dans les sols},
author = {Aurélie Pelfrêne and Hélène Roussel},
year = {2019},
date = {2019-01-01},
booktitle = {Journée technique d’information et de retour d’expérience de la gestion des sites et sols pollués 7 novembre 2019, Paris},
abstract = {Objectifs: *En raison de la complexité des méthodes in vitro , leur
simplification pourrait présenter un fort intérêt pour les gestionnaires
SSP *Proposer une méthode en 1ère approche comme un outil d’aide
à la décision *Evaluer la pertinence de méthodes d’extractions chimiques
simples pour mimer la fraction bioaccessible fraction de As, Cd et
Pb pour une large gamme de sols},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Objectifs: *En raison de la complexité des méthodes in vitro , leur
simplification pourrait présenter un fort intérêt pour les gestionnaires
SSP *Proposer une méthode en 1ère approche comme un outil d’aide
à la décision *Evaluer la pertinence de méthodes d’extractions chimiques
simples pour mimer la fraction bioaccessible fraction de As, Cd et
Pb pour une large gamme de sols |
2019Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Sahmer, Karin; Grard, Olivier; Heyman, Christophe; Douay, Francis Exposition des jardiniers urbains dans un contexte industrialisé – Aspects méthodologiques Techniques de l’ingénieur, vol. 10 novembre 2019, no. GE1016 V1, p. 17pp, 2019, (OV). @article{Pelfrene2019c,
title = {Exposition des jardiniers urbains dans un contexte industrialisé – Aspects méthodologiques},
author = {Aurélie Pelfrêne and Karin Sahmer and Olivier Grard and Christophe Heyman and Francis Douay},
year = {2019},
date = {2019-01-01},
journal = {Techniques de l’ingénieur},
volume = {10 novembre 2019},
number = {GE1016 V1},
pages = {17pp},
abstract = {INTRODUCTION Jusqu’à récemment le jardinage avait souvent pour vocation
principale de subvenir aux besoins alimentaires. De nos jours, les
motivations des jardiniers sont beaucoup plus variées. Outre la production
de fruits et légumes de qualité, le jardin joue aussi un rôle social
et de support de biodiversité fortement dépendant des pratiques associées
au jardinage (e.g. utilisation ou non de pesticides, intensité du
travail du sol, maintien d’habitats annexes favorables). Si le jardinage
est effectué le plus souvent en milieu rural, il se pratique de plus
en plus en milieux périurbain et urbain et peut être qualifié « d’agriculture
urbaine ». Se pose alors la question de la qualité des sols et des
productions cultivées au regard de pollutions potentielles résultant
des activités humaines actuelles et/ou passées (chauffage urbain,
circulation automobile, activités industrielles, apports de terre/remblais…).
D’une façon générale, les connaissances sur les jardins potagers
restent insuffisantes au regard de leur nombre élevé, de la diversité
de leurs contextes environnementaux, des modes de gouvernance, des
pratiques culturales et de consommation, de la complexité des réglementations
relatives à ces espaces, privatifs ou pas, et à ces productions.
L’objectif de cet article est de présenter un retour d’expérience
sur une démarche menée, en partenariat avec les services sanitaires,
dans une portion de l’ancien bassin minier du Nord-Pas-de-Calais,
région densément peuplée et avec un lourd passé industriel. La démarche,
transférable à d’autres contextes environnementaux, visait à mieux
connaître les jardins majoritairement privatifs. Elle s’étend depuis
l’étude historique du site jusqu’à la restitution auprès des jardiniers
des données acquises. Ces connaissances sont destinées à alimenter
les réflexions sur la gestion des potagers urbains en apportant des
arguments scientifiques et techniques sur les quantités produites
et consommées, les pratiques culturales des jardiniers, l’aptitude
des fruits et légumes autoproduits à accumuler des polluants métalliques.
Elles sont aussi le support de réflexions destinées à réduire l’exposition
aux polluants métalliques des jardiniers et de leur famille en lien
avec le jardinage.},
note = {OV},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
INTRODUCTION Jusqu’à récemment le jardinage avait souvent pour vocation
principale de subvenir aux besoins alimentaires. De nos jours, les
motivations des jardiniers sont beaucoup plus variées. Outre la production
de fruits et légumes de qualité, le jardin joue aussi un rôle social
et de support de biodiversité fortement dépendant des pratiques associées
au jardinage (e.g. utilisation ou non de pesticides, intensité du
travail du sol, maintien d’habitats annexes favorables). Si le jardinage
est effectué le plus souvent en milieu rural, il se pratique de plus
en plus en milieux périurbain et urbain et peut être qualifié « d’agriculture
urbaine ». Se pose alors la question de la qualité des sols et des
productions cultivées au regard de pollutions potentielles résultant
des activités humaines actuelles et/ou passées (chauffage urbain,
circulation automobile, activités industrielles, apports de terre/remblais…).
D’une façon générale, les connaissances sur les jardins potagers
restent insuffisantes au regard de leur nombre élevé, de la diversité
de leurs contextes environnementaux, des modes de gouvernance, des
pratiques culturales et de consommation, de la complexité des réglementations
relatives à ces espaces, privatifs ou pas, et à ces productions.
L’objectif de cet article est de présenter un retour d’expérience
sur une démarche menée, en partenariat avec les services sanitaires,
dans une portion de l’ancien bassin minier du Nord-Pas-de-Calais,
région densément peuplée et avec un lourd passé industriel. La démarche,
transférable à d’autres contextes environnementaux, visait à mieux
connaître les jardins majoritairement privatifs. Elle s’étend depuis
l’étude historique du site jusqu’à la restitution auprès des jardiniers
des données acquises. Ces connaissances sont destinées à alimenter
les réflexions sur la gestion des potagers urbains en apportant des
arguments scientifiques et techniques sur les quantités produites
et consommées, les pratiques culturales des jardiniers, l’aptitude
des fruits et légumes autoproduits à accumuler des polluants métalliques.
Elles sont aussi le support de réflexions destinées à réduire l’exposition
aux polluants métalliques des jardiniers et de leur famille en lien
avec le jardinage. |
2019Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Sahmer, Karin; Waterlot, Christophe; Douay, Francis From environmental data acquisition to assessment of gardeners' exposure: feedback in an urban context highly contaminated with metals Environmental Science and Pollution Research, vol. 26, no. 20, p. 20107-20120, 2019, (ACL). @article{Pelfrene2019d,
title = {From environmental data acquisition to assessment of gardeners' exposure: feedback in an urban context highly contaminated with metals},
author = {Aurélie Pelfrêne and Karin Sahmer and Christophe Waterlot and Francis Douay},
year = {2019},
date = {2019-01-01},
journal = {Environmental Science and Pollution Research},
volume = {26},
number = {20},
pages = {20107-20120},
abstract = {Although growing vegetables in urban gardens has several benefits,
some questions in relation with the safety of foods remain when the
self-production is carried out on highly contaminated garden soils.
To better assess the local population's exposure to Cd and Pb induced
by the past activities of a lead smelter, a participatory program
was initiated in 115 private kitchen gardens located in northern
France to assist gardeners in understanding their soil environment.
The challenge included contributing to the database of urban garden
soils with the collection of a large number of samples: 1525 crops
grouped into 12 types (leaf, fruiting, root, stem and bulbous vegetables,
tubers, cabbages, leguminous plants, celeriac, fresh herbs, fruits,
and berries), 708 topsoils, and 52 samples of self-produced compost.
The main results were as follows: (i) topsoils were strongly contaminated
by Cd and Pb compared to regional reference values; (ii) great variability
in physicochemical parameters and metal concentrations in topsoils;
(iii) the highest concentrations of Cd and Pb for celeriac and fresh
herbs and the lowest for fruits and fruiting vegetables; (iv) a high
percentage of vegetables that did not comply with the European foodstuff
legislation; and (v) most self-produced compost samples were strongly
contaminated. This study aimed to raise awareness and generate functional
recommendations to reduce human exposure and to provide useful data
that could be considered in other environmental contexts.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Although growing vegetables in urban gardens has several benefits,
some questions in relation with the safety of foods remain when the
self-production is carried out on highly contaminated garden soils.
To better assess the local population's exposure to Cd and Pb induced
by the past activities of a lead smelter, a participatory program
was initiated in 115 private kitchen gardens located in northern
France to assist gardeners in understanding their soil environment.
The challenge included contributing to the database of urban garden
soils with the collection of a large number of samples: 1525 crops
grouped into 12 types (leaf, fruiting, root, stem and bulbous vegetables,
tubers, cabbages, leguminous plants, celeriac, fresh herbs, fruits,
and berries), 708 topsoils, and 52 samples of self-produced compost.
The main results were as follows: (i) topsoils were strongly contaminated
by Cd and Pb compared to regional reference values; (ii) great variability
in physicochemical parameters and metal concentrations in topsoils;
(iii) the highest concentrations of Cd and Pb for celeriac and fresh
herbs and the lowest for fruits and fruiting vegetables; (iv) a high
percentage of vegetables that did not comply with the European foodstuff
legislation; and (v) most self-produced compost samples were strongly
contaminated. This study aimed to raise awareness and generate functional
recommendations to reduce human exposure and to provide useful data
that could be considered in other environmental contexts. |
2019Article de journal ER4 Auteurs : Ridoskova, Andrea; Pelfrêne, Aurélie; Douay, Francis; Pelcova, Pavlina; Smolikova, Vendula; Adam, Vojtech Bioavailability of mercury in contaminated soils assessed by the diffusive gradient in thin film technique in relation to uptake by Miscanthus x giganteus Environmental Toxicology and Chemistry, vol. 38, no. 2, p. 321-328, 2019, (ACL). @article{Ridoskova2019,
title = {Bioavailability of mercury in contaminated soils assessed by the diffusive gradient in thin film technique in relation to uptake by Miscanthus x giganteus},
author = {Andrea Ridoskova and Aurélie Pelfrêne and Francis Douay and Pavlina Pelcova and Vendula Smolikova and Vojtech Adam},
year = {2019},
date = {2019-01-01},
journal = {Environmental Toxicology and Chemistry},
volume = {38},
number = {2},
pages = {321-328},
abstract = {We assessed the relationship between the diffusive gradient in thin
film (DGT) technique using the new ion-exchange resin Ambersep GT74
and the uptake of mercury (Hg) by a model plant cultivated on metal-contaminated
agricultural soils under greenhouse conditions. Based on the total
Hg content, 0.37 to 1.17% of the Hg passed to the soil porewater
from the solid phase, and 2.18 to 9.18% of the Hg is DGT-available.
These results were confirmed by calculating the R value (the ratio
of the concentrations of bioavailable Hg measured by DGT and soil
solution), which illustrated the strong bonding of Hg to the solid
phase of soil and its extremely low mobility. Only inorganic Hg(2+)
species were found in the metal-contaminated agricultural soils,
as determined by a high-performance liquid chromatography-cold vapor
atomic fluorescence spectrometry speciation analysis. The Hg was
distributed in Miscanthus x giganteus organs in the following order
for all sampling sites: roots (55-82%) >> leaves (8-27%) > stems
(7-16%) > rhizomes (4-7%). Environ Toxicol Chem 2019;38:321-328.
(c) 2018 SETAC.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
We assessed the relationship between the diffusive gradient in thin
film (DGT) technique using the new ion-exchange resin Ambersep GT74
and the uptake of mercury (Hg) by a model plant cultivated on metal-contaminated
agricultural soils under greenhouse conditions. Based on the total
Hg content, 0.37 to 1.17% of the Hg passed to the soil porewater
from the solid phase, and 2.18 to 9.18% of the Hg is DGT-available.
These results were confirmed by calculating the R value (the ratio
of the concentrations of bioavailable Hg measured by DGT and soil
solution), which illustrated the strong bonding of Hg to the solid
phase of soil and its extremely low mobility. Only inorganic Hg(2+)
species were found in the metal-contaminated agricultural soils,
as determined by a high-performance liquid chromatography-cold vapor
atomic fluorescence spectrometry speciation analysis. The Hg was
distributed in Miscanthus x giganteus organs in the following order
for all sampling sites: roots (55-82%) >> leaves (8-27%) > stems
(7-16%) > rhizomes (4-7%). Environ Toxicol Chem 2019;38:321-328.
(c) 2018 SETAC. |
2019Conférence ER4 Auteurs : Louzon, Maxime; Pauget, Benjamin; Pelfrêne, Aurélie; Gimbert, Frédéric; Crini, Nadia; Rieffel, Dominique; Amiot, Caroline; Douay, Francis; De-Vaufleury, Annette Couplage de la bioaccessibilité orale pour l’homme et de la biodisponibilité pour l’escargot 4ème Rencontres nationales de la Recherche sur les sites et sols pollués, Le Beffroi de Montrouge, 26-27 novembre 2019, Paris, 2019, (ACTN). @conference{Louzon2019c,
title = {Couplage de la bioaccessibilité orale pour l’homme et de la biodisponibilité pour l’escargot},
author = {Maxime Louzon and Benjamin Pauget and Aurélie Pelfrêne and Frédéric Gimbert and Nadia Crini and Dominique Rieffel and Caroline Amiot and Francis Douay and Annette De-Vaufleury},
year = {2019},
date = {2019-01-01},
booktitle = {4ème Rencontres nationales de la Recherche sur les sites et sols pollués, Le Beffroi de Montrouge, 26-27 novembre 2019, Paris},
abstract = {Dans le contexte de l’évaluation des risques sanitaires (ERS) et environnementaux
(ERE), un des objectifs du programme COMBINE, soutenu par l’ADEME
est de confronter les outils utilisés dans ces évaluations. Sur vingt-neuf
échantillons de terres contaminées par l’As, le Cd et le Pb, ont
été réalisées d’une part, un test in vitro de bioaccessibilité pour
l’homme (UBM) estimant la fraction des contaminants solubilisée au
niveau du tractus gastro-intestinal après ingestion de particules
de terre, et d’autre part, un test de bioaccumulation ex situ en
utilisant l’escargot. Les résultats montrent une influence des paramètres
physico-chimiques des terres sur la bioaccessibilité et la bioaccumulation
des contaminants par l’escargot. Les régressions multiples révèlent
de bonnes corrélations entre la bioaccumulation chez l’escargot et
la bioaccessibilité (r²adj entre 0,77 et 0,95) selon la nature et
la concentration du contaminant, des paramètres physico-chimiques
des terres, et de la phase gastrique ou gastro-intestinale du test
UBM. Pour les trois éléments métalliques étudiés, une forte relation
existe entre les méthodologies d’évaluation de la biodisponibilité
pour l’ERE et l’ERS. Ceci n’avait jamais encore été montré pour des
organismes présentant une physiologie et des modes d’exposition variés},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Dans le contexte de l’évaluation des risques sanitaires (ERS) et environnementaux
(ERE), un des objectifs du programme COMBINE, soutenu par l’ADEME
est de confronter les outils utilisés dans ces évaluations. Sur vingt-neuf
échantillons de terres contaminées par l’As, le Cd et le Pb, ont
été réalisées d’une part, un test in vitro de bioaccessibilité pour
l’homme (UBM) estimant la fraction des contaminants solubilisée au
niveau du tractus gastro-intestinal après ingestion de particules
de terre, et d’autre part, un test de bioaccumulation ex situ en
utilisant l’escargot. Les résultats montrent une influence des paramètres
physico-chimiques des terres sur la bioaccessibilité et la bioaccumulation
des contaminants par l’escargot. Les régressions multiples révèlent
de bonnes corrélations entre la bioaccumulation chez l’escargot et
la bioaccessibilité (r²adj entre 0,77 et 0,95) selon la nature et
la concentration du contaminant, des paramètres physico-chimiques
des terres, et de la phase gastrique ou gastro-intestinale du test
UBM. Pour les trois éléments métalliques étudiés, une forte relation
existe entre les méthodologies d’évaluation de la biodisponibilité
pour l’ERE et l’ERS. Ceci n’avait jamais encore été montré pour des
organismes présentant une physiologie et des modes d’exposition variés |
2019Conférence ER4 Auteurs : Pauget, Benjamin; Louzon, Maxime; Pelfrêne, Aurélie; Gimbert, Frédéric; Douay, Francis; De-Vaufleury, Annette Intégration de la biodisponibilité dans l’évaluation des risques sanitaires et environnementaux de sols contaminés 4ème Rencontres nationales de la Recherche sur les sites et sols pollués, Le Beffroi de Montrouge, 26-27 novembre 2019, Paris, 2019, (ACTN). @conference{Pauget2019,
title = {Intégration de la biodisponibilité dans l’évaluation des risques sanitaires et environnementaux de sols contaminés},
author = {Benjamin Pauget and Maxime Louzon and Aurélie Pelfrêne and Frédéric Gimbert and Francis Douay and Annette De-Vaufleury},
year = {2019},
date = {2019-01-01},
booktitle = {4ème Rencontres nationales de la Recherche sur les sites et sols pollués, Le Beffroi de Montrouge, 26-27 novembre 2019, Paris},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2019Conférence ER4 Auteurs : Pelfrêne, Aurélie; Le-Bot, Barbara; Waterlot, Christophe; Glorennec, Philippe; Sahmer, Karin; Douay, Francis Une méthode simplifiée pour estimer la bioaccessibilité des polluants métalliques dans les sols 4ème Rencontres nationales de la Recherche sur les sites et sols pollués, Le Beffroi de Montrouge, 26-27 novembre 2019, Paris, 2019, (ACTN). @conference{Pelfrene2019f,
title = {Une méthode simplifiée pour estimer la bioaccessibilité des polluants métalliques dans les sols},
author = {Aurélie Pelfrêne and Barbara Le-Bot and Christophe Waterlot and Philippe Glorennec and Karin Sahmer and Francis Douay},
year = {2019},
date = {2019-01-01},
booktitle = {4ème Rencontres nationales de la Recherche sur les sites et sols pollués, Le Beffroi de Montrouge, 26-27 novembre 2019, Paris},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2018Conférence ER4 Auteurs : Janus, Adeline; Pelfrêne, Aurélie; Bidar, Géraldine; Louvel, Brice; Douay, Francis Influence of two amendments on phyto- and sanitary availability of metals in highly contaminated soils: A greenhouse study International Conference Contaminated Sites 2018, 8-10 October 2018, Banská Bystrica (Slovak Republic), 2018, (COM). @conference{Janus2018,
title = {Influence of two amendments on phyto- and sanitary availability of metals in highly contaminated soils: A greenhouse study},
author = {Adeline Janus and Aurélie Pelfrêne and Géraldine Bidar and Brice Louvel and Francis Douay},
year = {2018},
date = {2018-01-01},
booktitle = {International Conference Contaminated Sites 2018, 8-10 October 2018, Banská Bystrica (Slovak Republic)},
pages = {101},
abstract = {Soil is an essential and non-renewable resource which can perform
a high number of economic, social and environmental functions as
biomass production, source of raw materials or protection of humans
and environment (Blum, 2005). However, the soil functionality becomes
increasingly compromised due to contaminations caused by human activities.
In 2006 and in 39 countries, the European Environmental Agency inventoried
approximately 3 million of sites where pollutant activities occurred
with more than 1 .8 million potentially contaminated sites (CGDD
2013). In 2012, the most frequently identified contaminants were
metals (35 %), hydrocarbons (24 %) and polycyclic aromatic hydrocarbons
(11 %). Until recently, the most common remediation technique was
the excavation of contaminated soil and its disposal as landfill.
However, this kind of method is considered inappropriate because
it generates considerable disturbances, is expensive and economically
unfeasible on a large scale . Thus, other remediation techniques
(ex and in situ) have been developed to overcome these disadvantages
. Among them, a technique consists in adding inorganic or organic
amendments to the contaminated soils in order to decrease the mobility
and bioavailability of pollutants in soils (Kumpiene et al., 2008;
Vangronsveld et al., 2009; Bolan et al., 2014; Nejad et al., 2017)
. The most often used amendments are phosphate compounds, liming
materials, metal oxides and biochars, used alone or in combination
(Waterlot et al., 2017; Lahori et al., 2017; Oustrière et al., 2017).
The goal of the present work consists in evaluating the ability of
two amendments (woody biochar and iron grit, used alone or in combination)
to immobilize Cd, Cu, Pb, and Zn in contaminated soils under greenhouse
conditions},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Soil is an essential and non-renewable resource which can perform
a high number of economic, social and environmental functions as
biomass production, source of raw materials or protection of humans
and environment (Blum, 2005). However, the soil functionality becomes
increasingly compromised due to contaminations caused by human activities.
In 2006 and in 39 countries, the European Environmental Agency inventoried
approximately 3 million of sites where pollutant activities occurred
with more than 1 .8 million potentially contaminated sites (CGDD
2013). In 2012, the most frequently identified contaminants were
metals (35 %), hydrocarbons (24 %) and polycyclic aromatic hydrocarbons
(11 %). Until recently, the most common remediation technique was
the excavation of contaminated soil and its disposal as landfill.
However, this kind of method is considered inappropriate because
it generates considerable disturbances, is expensive and economically
unfeasible on a large scale . Thus, other remediation techniques
(ex and in situ) have been developed to overcome these disadvantages
. Among them, a technique consists in adding inorganic or organic
amendments to the contaminated soils in order to decrease the mobility
and bioavailability of pollutants in soils (Kumpiene et al., 2008;
Vangronsveld et al., 2009; Bolan et al., 2014; Nejad et al., 2017)
. The most often used amendments are phosphate compounds, liming
materials, metal oxides and biochars, used alone or in combination
(Waterlot et al., 2017; Lahori et al., 2017; Oustrière et al., 2017).
The goal of the present work consists in evaluating the ability of
two amendments (woody biochar and iron grit, used alone or in combination)
to immobilize Cd, Cu, Pb, and Zn in contaminated soils under greenhouse
conditions |
2018Conférence ER4 Auteurs : Nguyen, Van-Xuan; Douay, Francis; Alary, Claire; Mamindy-Pajany, Yannick; Pelfrêne, Aurélie Caractérisation de la disponibilité environnementale et toxicologique de Cd et Pb dans des anthroposols issus de sédiments de dragage fluviaux International Conference Contaminated Sites 2018, 8-10 October 2018, Banská Bystrica (Slovak Republic), 2018, (COM). @conference{Nguyen2018,
title = {Caractérisation de la disponibilité environnementale et toxicologique de Cd et Pb dans des anthroposols issus de sédiments de dragage fluviaux},
author = {Van-Xuan Nguyen and Francis Douay and Claire Alary and Yannick Mamindy-Pajany and Aurélie Pelfrêne},
year = {2018},
date = {2018-01-01},
booktitle = {International Conference Contaminated Sites 2018, 8-10 October 2018, Banská Bystrica (Slovak Republic)},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2018Conférence ER4 Auteurs : Nguyen, Van-Xuan; Douay, Francis; Mamindy-Pajany, Yannick; Alary, Claire; Pelfrêne, Aurélie Caractérisation de la disponibilité environnementale et toxicologique de Cd et Pb dans des anthroposols issus de sédiments de dragage fluviaux 26e Réunion des Sciences de la Terre, 22-26 octobre 2018, Lille, 2018, (ACTN). @conference{Nguyen2018a,
title = {Caractérisation de la disponibilité environnementale et toxicologique de Cd et Pb dans des anthroposols issus de sédiments de dragage fluviaux},
author = {Van-Xuan Nguyen and Francis Douay and Yannick Mamindy-Pajany and Claire Alary and Aurélie Pelfrêne},
year = {2018},
date = {2018-01-01},
booktitle = {26e Réunion des Sciences de la Terre, 22-26 octobre 2018, Lille},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2018Conférence ER4 Auteurs : Nguyen, Van-Xuan; Douay, Francis; Mamindy-Pajany, Yannick; Alary, Claire; Pelfrêne, Aurélie Importance of environmental and toxicological availabilities of Cd and Pb in management of dredged sediments International Conference Contaminated Sites 2018, 8-10 October 2018, Banská Bystrica (Slovak Republic), 2018, (COM). @conference{Nguyen2018b,
title = {Importance of environmental and toxicological availabilities of Cd and Pb in management of dredged sediments},
author = {Van-Xuan Nguyen and Francis Douay and Yannick Mamindy-Pajany and Claire Alary and Aurélie Pelfrêne},
year = {2018},
date = {2018-01-01},
booktitle = {International Conference Contaminated Sites 2018, 8-10 October 2018, Banská Bystrica (Slovak Republic)},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2018Conférence ER4 Auteurs : Sahmer, Karin; Potel, A; Waterlot, Christophe; Pelfrêne, Aurélie Modélisation de l’accumulation du cadmium dans des légumes en fonction des concentrations extractibles des sols Chimiométrie XIX, 30-31 janvier 2018, Paris, 2018, (AFF). @conference{Sahmer2018,
title = {Modélisation de l’accumulation du cadmium dans des légumes en fonction des concentrations extractibles des sols},
author = {Karin Sahmer and A Potel and Christophe Waterlot and Aurélie Pelfrêne},
year = {2018},
date = {2018-01-01},
booktitle = {Chimiométrie XIX, 30-31 janvier 2018, Paris},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2018Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Douay, Francis Assessment of oral and lung bioaccessibility of Cd and Pb from smelter-impacted dust Environmental Science and Pollution Research, vol. 25, no. 4, p. 3718-3730, 2018, (ACL). @article{Pelfrene2018,
title = {Assessment of oral and lung bioaccessibility of Cd and Pb from smelter-impacted dust},
author = {Aurélie Pelfrêne and Francis Douay},
year = {2018},
date = {2018-01-01},
journal = {Environmental Science and Pollution Research},
volume = {25},
number = {4},
pages = {3718-3730},
abstract = {Soil and dust contamination by metals engenders significant environmental
and health problems in northern France where a lead smelter was in
activity for more than a century. This study aims to examine the
long-term effects of the smelter, 10 years after its closedown, on
the presence of metal in sidewalk dust for a better assessment of
the local population's exposure to Cd and Pb. The investigation included:
(i) the metal distribution in different dust particle sizes and (ii)
the assessment of metal bioaccessibility via ingestion and inhalation
of dust. Seventy-two sidewalk dust samples were collected using a
dust-sampling vacuum. The samples were sieved to collect different
particle sizes from 0.3 to 1000 mu m. The unified bioaccessibility
method (UBM) was employed to evaluate the oral bioaccessibility of
metals in the different particle sizes. The pulmonary bioaccessible
fraction of Cd and Pb via the finest particles was extracted with
lung-simulating solution (artificial lysosomal fluid). Ten years
after the smelter closedown, (i) a strong relationship was observed
between the concentrations of metals in dust and the distance to
the former smelter, whatever the particle size; (ii) both total and
oral bioaccessible concentrations of metals were high in the finest
fraction (0.3-5 mu m) and decreased when the particle size increased;
(iii) a higher oral bioaccessibility of Cd and Pb was measured in
the gastric phase (on average 43% for both metals for all particle
sizes) and compared to the gastrointestinal phase (on average 16%
for both metals for all particle sizes); and (iv) metal bioaccessibility
via inhalation of dust was relatively high (on average 74 and 69%,
for Cd and Pb, respectively). The results of the present study suggest
that this environmental compartment may be a sensitive and effective
indicator of anthropogenic metal contamination and the human exposure
in urban areas.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Soil and dust contamination by metals engenders significant environmental
and health problems in northern France where a lead smelter was in
activity for more than a century. This study aims to examine the
long-term effects of the smelter, 10 years after its closedown, on
the presence of metal in sidewalk dust for a better assessment of
the local population's exposure to Cd and Pb. The investigation included:
(i) the metal distribution in different dust particle sizes and (ii)
the assessment of metal bioaccessibility via ingestion and inhalation
of dust. Seventy-two sidewalk dust samples were collected using a
dust-sampling vacuum. The samples were sieved to collect different
particle sizes from 0.3 to 1000 mu m. The unified bioaccessibility
method (UBM) was employed to evaluate the oral bioaccessibility of
metals in the different particle sizes. The pulmonary bioaccessible
fraction of Cd and Pb via the finest particles was extracted with
lung-simulating solution (artificial lysosomal fluid). Ten years
after the smelter closedown, (i) a strong relationship was observed
between the concentrations of metals in dust and the distance to
the former smelter, whatever the particle size; (ii) both total and
oral bioaccessible concentrations of metals were high in the finest
fraction (0.3-5 mu m) and decreased when the particle size increased;
(iii) a higher oral bioaccessibility of Cd and Pb was measured in
the gastric phase (on average 43% for both metals for all particle
sizes) and compared to the gastrointestinal phase (on average 16%
for both metals for all particle sizes); and (iv) metal bioaccessibility
via inhalation of dust was relatively high (on average 74 and 69%,
for Cd and Pb, respectively). The results of the present study suggest
that this environmental compartment may be a sensitive and effective
indicator of anthropogenic metal contamination and the human exposure
in urban areas. |
2018Article de journal ER4 Auteurs : Janus, Adeline; Waterlot, Christophe; Heymans, Sophie; Deboffe, Christophe; Douay, Francis; Pelfrêne, Aurélie Do biochars influence the availability and human oral bioaccessibility of Cd, Pb, and Zn in a contaminated slightly alkaline soil? Environmental Monitoring and Assessment, vol. 190, no. 218, p. 1-13, 2018, (ACL). @article{Janus2018b,
title = {Do biochars influence the availability and human oral bioaccessibility of Cd, Pb, and Zn in a contaminated slightly alkaline soil?},
author = {Adeline Janus and Christophe Waterlot and Sophie Heymans and Christophe Deboffe and Francis Douay and Aurélie Pelfrêne},
year = {2018},
date = {2018-01-01},
journal = {Environmental Monitoring and Assessment},
volume = {190},
number = {218},
pages = {1-13},
abstract = {Different remediation techniques have been used to restore metal-contaminated
sites, including stabilizing metals by adding amendments to the soils.
This study experimented three biochars, made from wood and miscanthus,
cultivated on contaminated and uncontaminated soils, used as amendments
at a 2% application rate on a metal-contaminated soil for 9 months
in laboratory-controlled conditions. The objective was to evaluate
whether biochars were able to decrease the availability and human
oral bioaccessibility of metals in an alkaline soil. To meet this
goal, the modifications of the soil’s physicochemical parameters,
metal distribution in soil, and human bioaccessibility were evaluated
at different sampling times. The results showed that biochar application
to the alkaline soil did not always decrease the soil metal availability,
which challenges the value of using biochars in already slightly
alkaline soils at a low application rate. However, differences in
efficiency between the three biochars tested were highlighted. The
biochar produced with miscanthus cultivated on uncontaminated soil
led to higher soil metal bioaccessibility. Moreover, because of the
absence of any increase in soil metal availability with the biochar
produced from biomass cultivated on contaminated soil, the use of
such biochars can be recommended for the remediation of contaminated
soil.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Different remediation techniques have been used to restore metal-contaminated
sites, including stabilizing metals by adding amendments to the soils.
This study experimented three biochars, made from wood and miscanthus,
cultivated on contaminated and uncontaminated soils, used as amendments
at a 2% application rate on a metal-contaminated soil for 9 months
in laboratory-controlled conditions. The objective was to evaluate
whether biochars were able to decrease the availability and human
oral bioaccessibility of metals in an alkaline soil. To meet this
goal, the modifications of the soil’s physicochemical parameters,
metal distribution in soil, and human bioaccessibility were evaluated
at different sampling times. The results showed that biochar application
to the alkaline soil did not always decrease the soil metal availability,
which challenges the value of using biochars in already slightly
alkaline soils at a low application rate. However, differences in
efficiency between the three biochars tested were highlighted. The
biochar produced with miscanthus cultivated on uncontaminated soil
led to higher soil metal bioaccessibility. Moreover, because of the
absence of any increase in soil metal availability with the biochar
produced from biomass cultivated on contaminated soil, the use of
such biochars can be recommended for the remediation of contaminated
soil. |
2017Conférence ER4 Auteurs : Douay, Francis; Lefebvre, Gaëtan; Branchu, Philippe; Pelfrêne, Aurélie; Lebeau, Thierry; Rémy, Elisabeth Jardins collectifs urbains et contaminations des sols : retours d’expérience sur l’évaluation des risques sanitaires International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse, 2017, (ACTI). @conference{Douay2017,
title = {Jardins collectifs urbains et contaminations des sols : retours d’expérience sur l’évaluation des risques sanitaires},
author = {Francis Douay and Gaëtan Lefebvre and Philippe Branchu and Aurélie Pelfrêne and Thierry Lebeau and Elisabeth Rémy},
year = {2017},
date = {2017-01-01},
booktitle = {International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse},
abstract = {Avec la montée en puissance de préoccupations en lien avec l’environnement et le « manger sain », on constate une demande croissante pour les jardins collectifs urbains (jardins familiaux, partagés, pédagogiques ou encore d’insertion) (canavese, 2014). cependant, résultant de processus géologiques et pédologiques hétérogènes (pouvant dans certains cas être à l’origine d’anomalies avec fortes concentrations en certains éléments métalliques, cf. jean-soro et al. 2014; bouquet et al., 2016), leurs sols sont des milieux très complexes et réactifs aux activités humaines et industrielles (douay, 2008). les jardins collectifs présentent la particularité d’être très souvent en milieu urbain ou périurbain et leurs sols ont été fréquemment remaniés, d’où la difficulté de retracer l’historique et, parfois, l’origine des contaminants. de fait, les jardins sont souvent aménagés sur des espaces qui ont été exposés par le passé à une, voire plusieurs sources de contamination. à ce jour, demeurent de nombreuses sources de contaminations (potentielles ou avérées) telles que la proximité d’industries, d’axes routiers ou ferroviaires susceptibles d’impacter la qualité de ces milieux comme supports de cultures, l'utilisation fréquente de produits phytosanitaires (même lorsque la charte du jardin ou de la ville l’interdit) qui peuvent conduire à modifier le fonctionnement du sol, ou encore l’utilisation pour l’irrigation d’eau contaminée. à cela s’ajoutent les sources de contaminations urbaines issues de la circulation automobile, du chauffage et de l’altération des constructions et des matériaux. dans ce contexte, les jardins peuvent présenter un risque du fait d’une contamination de leurs sols et plus globalement du milieu où ils sont localisés, surtout lorsqu’ils concernent une population dite « sensible » (enfants, femmes enceintes, personnes âgées). l’exposition aux polluants peut être liée à la consommation de légumes et/ou à l’inhalation ou à l’ingestion de particules de terre contaminées. une autre voie d’exposition est celle de la pollution atmosphérique dont les effets sont accentués par l’activité physique associée au jardinage. d’un point de vue réglementaire et contrairement à l’air ou à l’eau, le sol a un statut très particulier puisqu’il n’est pas protégé en tant que tel. l’absence de valeurs seuils réglementant les usages des sols pèse sur la gestion des jardins urbains, espaces récréatifs et de productions alimentaires. en cas de contamination environnementale avérée, la démarche nationale repose sur les procédures réglementaires d’évaluation de risques sanitaires des sites et sols pollués. dans le cadre d’une démarche pluridisciplinaire, il a été décidé de centrer notre attention sur l’outil « evaluation quantitative des risques sanitaires –eqrs » préconisé dans le cadre de la méthodologie nationale et appliqué à la problématique des jardins associatifs. après un rappel des étapes relatives à cet outil, seront exposés les contextes et les démarches de cinq études réalisées sur des jardins familiaux français situés dans différents contextes environnementaux. le retour d’expérience sur l’analyse des eqrs étudiées a mis en évidence six points majeurs, lesquels seront présentés et discutés : - les compétences du maître d’ouvrage / maître d’oeuvre pour définir ce qui est à faire ou à ne pas faire dans le cadre d’une eqrs ; - les données nécessaires pour la réalisation d’une eqrs en soulignant l’importance du diagnostic historique ; - les incertitudes liées à la mesure des concentrations en polluants dans les matrices échantillonnées ; - les difficultés qui résultent de l’absence de valeurs réglementaires pour déclarer qu’un sol est contaminé et du recours à des référentiels plus ou moins adaptés au contexte et aux objectifs de la démarche ; - les incertitudes sur les paramètres à considérer dans l’eqrs (quantités de particules de terre et de légumes ingérés, part des légumes autoproduits…) ; - la perception du sol par les jardiniers et la nécessité de définir un langage commun pour ne pas générer de problèmes d’interprétation et répondre aux questions que se posent ces acteurs. l’analyse des cinq exemples d’eqrs atteste l’importance des paramètres à considérer pour une telle démarche. le présent travail représente un apport méthodologique en vue d’essayer de guider les pratiques et aussi, de répondre aux collectivités, lesquelles sont de plus en plus confrontées à des problèmes de contamination des sols de jardin et veulent s’engager dans la réalisation d’une eqrs. au vu de certains résultats, des jardiniers vont se documenter, chercher des réponses auprès des mairies, des bureaux d’études, de l’ars, de scientifiques… l’expérience souligne aussi l’absence de référent qui pourrait renseigner sur la qualité des sols et de leur gestion en milieu contaminé. la restitution des résultats auprès des gestionnaires de jardins et des populations concernées nécessite une réflexion approfondie associant les parties concernées et des spécialistes de la santé.},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Avec la montée en puissance de préoccupations en lien avec l’environnement et le « manger sain », on constate une demande croissante pour les jardins collectifs urbains (jardins familiaux, partagés, pédagogiques ou encore d’insertion) (canavese, 2014). cependant, résultant de processus géologiques et pédologiques hétérogènes (pouvant dans certains cas être à l’origine d’anomalies avec fortes concentrations en certains éléments métalliques, cf. jean-soro et al. 2014; bouquet et al., 2016), leurs sols sont des milieux très complexes et réactifs aux activités humaines et industrielles (douay, 2008). les jardins collectifs présentent la particularité d’être très souvent en milieu urbain ou périurbain et leurs sols ont été fréquemment remaniés, d’où la difficulté de retracer l’historique et, parfois, l’origine des contaminants. de fait, les jardins sont souvent aménagés sur des espaces qui ont été exposés par le passé à une, voire plusieurs sources de contamination. à ce jour, demeurent de nombreuses sources de contaminations (potentielles ou avérées) telles que la proximité d’industries, d’axes routiers ou ferroviaires susceptibles d’impacter la qualité de ces milieux comme supports de cultures, l'utilisation fréquente de produits phytosanitaires (même lorsque la charte du jardin ou de la ville l’interdit) qui peuvent conduire à modifier le fonctionnement du sol, ou encore l’utilisation pour l’irrigation d’eau contaminée. à cela s’ajoutent les sources de contaminations urbaines issues de la circulation automobile, du chauffage et de l’altération des constructions et des matériaux. dans ce contexte, les jardins peuvent présenter un risque du fait d’une contamination de leurs sols et plus globalement du milieu où ils sont localisés, surtout lorsqu’ils concernent une population dite « sensible » (enfants, femmes enceintes, personnes âgées). l’exposition aux polluants peut être liée à la consommation de légumes et/ou à l’inhalation ou à l’ingestion de particules de terre contaminées. une autre voie d’exposition est celle de la pollution atmosphérique dont les effets sont accentués par l’activité physique associée au jardinage. d’un point de vue réglementaire et contrairement à l’air ou à l’eau, le sol a un statut très particulier puisqu’il n’est pas protégé en tant que tel. l’absence de valeurs seuils réglementant les usages des sols pèse sur la gestion des jardins urbains, espaces récréatifs et de productions alimentaires. en cas de contamination environnementale avérée, la démarche nationale repose sur les procédures réglementaires d’évaluation de risques sanitaires des sites et sols pollués. dans le cadre d’une démarche pluridisciplinaire, il a été décidé de centrer notre attention sur l’outil « evaluation quantitative des risques sanitaires –eqrs » préconisé dans le cadre de la méthodologie nationale et appliqué à la problématique des jardins associatifs. après un rappel des étapes relatives à cet outil, seront exposés les contextes et les démarches de cinq études réalisées sur des jardins familiaux français situés dans différents contextes environnementaux. le retour d’expérience sur l’analyse des eqrs étudiées a mis en évidence six points majeurs, lesquels seront présentés et discutés : - les compétences du maître d’ouvrage / maître d’oeuvre pour définir ce qui est à faire ou à ne pas faire dans le cadre d’une eqrs ; - les données nécessaires pour la réalisation d’une eqrs en soulignant l’importance du diagnostic historique ; - les incertitudes liées à la mesure des concentrations en polluants dans les matrices échantillonnées ; - les difficultés qui résultent de l’absence de valeurs réglementaires pour déclarer qu’un sol est contaminé et du recours à des référentiels plus ou moins adaptés au contexte et aux objectifs de la démarche ; - les incertitudes sur les paramètres à considérer dans l’eqrs (quantités de particules de terre et de légumes ingérés, part des légumes autoproduits…) ; - la perception du sol par les jardiniers et la nécessité de définir un langage commun pour ne pas générer de problèmes d’interprétation et répondre aux questions que se posent ces acteurs. l’analyse des cinq exemples d’eqrs atteste l’importance des paramètres à considérer pour une telle démarche. le présent travail représente un apport méthodologique en vue d’essayer de guider les pratiques et aussi, de répondre aux collectivités, lesquelles sont de plus en plus confrontées à des problèmes de contamination des sols de jardin et veulent s’engager dans la réalisation d’une eqrs. au vu de certains résultats, des jardiniers vont se documenter, chercher des réponses auprès des mairies, des bureaux d’études, de l’ars, de scientifiques… l’expérience souligne aussi l’absence de référent qui pourrait renseigner sur la qualité des sols et de leur gestion en milieu contaminé. la restitution des résultats auprès des gestionnaires de jardins et des populations concernées nécessite une réflexion approfondie associant les parties concernées et des spécialistes de la santé. |
2017Conférence ER4 Auteurs : Dumat, Camille; Pelfrêne, Aurélie; Lévêque, Thibaut; Mombo, Stéphane; Austruy, Annabelle; Shins, R; Foucault, Yann Measurement of human bioaccessibility for metals: Relevant indicator of the link environment-health! International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse, 2017, (AFF). @conference{Dumat2017,
title = {Measurement of human bioaccessibility for metals: Relevant indicator of the link environment-health!},
author = {Camille Dumat and Aurélie Pelfrêne and Thibaut Lévêque and Stéphane Mombo and Annabelle Austruy and R Shins and Yann Foucault},
year = {2017},
date = {2017-01-01},
booktitle = {International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2017Article de journal ER4 Auteurs : Janus, Adeline; Goulas, Anaïs; Pelfrêne, Aurélie; Douay, Francis; Waterlot, Christophe Determination of PAHs by ultra fast liquid chromatography using a coreshell technology – Application to their determination after using biochar as adsorbent Measurement, vol. 106, p. 137-142, 2017, (ACL). @article{Janus2017a,
title = {Determination of PAHs by ultra fast liquid chromatography using a coreshell technology – Application to their determination after using biochar as adsorbent},
author = {Adeline Janus and Anaïs Goulas and Aurélie Pelfrêne and Francis Douay and Christophe Waterlot},
year = {2017},
date = {2017-01-01},
journal = {Measurement},
volume = {106},
pages = {137-142},
abstract = {The c18 column (250 mm 4.6 mm) packed with 5 lm core-shell particles was used in an effort to optimize the separation of 8 polycyclic aromatic hydrocarbons under very low pressure values (44–52 bars), low temperature (16 c) and in 13 min. chromatogram and peaks of each polycyclic aromatic hydrocarbon studied, obtained using an ultra fast liquid chromatography fitted with this column and equipped with a diode array detector, were compared with those obtained using two other traditional c18 columns, packed with fully porous 5 lm particles, usually used in our laboratory and specifically designed for the separation of polycyclic aromatic hydrocarbons. thinnest peaks, highest sensitivity and efficiency are the main results related to the core-shell technology of the recent kinetex column compared to more common c18 columns due to the bed uniformity and packing quality of the recent core-shell column. on the other hand, reduced retention time was highlighted for each polycyclic aromatic hydrocarbon using the column packed with core-shell particles resulting from the lower surface area of these particles compared to the totally porous particles of the both other columns used. limits of detection and quantification, linearity range and repeatability were determined for the method developed with the core-shell column. a practical application was realized by evaluating the sorption capacity of the 8 polycyclic aromatic hydrocarbons studied in mixture using a biochar made from woody plants. to this end, the biochar was mixed with aqueous solution spiked with the mixture of polycyclic aromatic hydrocarbons and a kinetic study of their sorption was conducted. sorption percentage was higher than 89% for each polycyclic aromatic hydrocarbon studied showing that the studied biochar could be good and low cost alternative products for the sorption of this type of pollutants.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The c18 column (250 mm 4.6 mm) packed with 5 lm core-shell particles was used in an effort to optimize the separation of 8 polycyclic aromatic hydrocarbons under very low pressure values (44–52 bars), low temperature (16 c) and in 13 min. chromatogram and peaks of each polycyclic aromatic hydrocarbon studied, obtained using an ultra fast liquid chromatography fitted with this column and equipped with a diode array detector, were compared with those obtained using two other traditional c18 columns, packed with fully porous 5 lm particles, usually used in our laboratory and specifically designed for the separation of polycyclic aromatic hydrocarbons. thinnest peaks, highest sensitivity and efficiency are the main results related to the core-shell technology of the recent kinetex column compared to more common c18 columns due to the bed uniformity and packing quality of the recent core-shell column. on the other hand, reduced retention time was highlighted for each polycyclic aromatic hydrocarbon using the column packed with core-shell particles resulting from the lower surface area of these particles compared to the totally porous particles of the both other columns used. limits of detection and quantification, linearity range and repeatability were determined for the method developed with the core-shell column. a practical application was realized by evaluating the sorption capacity of the 8 polycyclic aromatic hydrocarbons studied in mixture using a biochar made from woody plants. to this end, the biochar was mixed with aqueous solution spiked with the mixture of polycyclic aromatic hydrocarbons and a kinetic study of their sorption was conducted. sorption percentage was higher than 89% for each polycyclic aromatic hydrocarbon studied showing that the studied biochar could be good and low cost alternative products for the sorption of this type of pollutants. |
2017Article de journal ER4 Auteurs : Janus, Adeline; Pelfrêne, Aurélie; Sahmer, Karin; Heymans, Sophie; Deboffe, Christophe; Douay, Francis; Waterlot, Christophe Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions Environmental Science and Pollution Research, vol. 24, no. 22, p. 18204-18217, 2017, (ACL). @article{Janus2017b,
title = {Value of biochars from Miscanthus x giganteus cultivated on contaminated soils to decrease the availability of metals in multicontaminated aqueous solutions},
author = {Adeline Janus and Aurélie Pelfrêne and Karin Sahmer and Sophie Heymans and Christophe Deboffe and Francis Douay and Christophe Waterlot},
year = {2017},
date = {2017-01-01},
journal = {Environmental Science and Pollution Research},
volume = {24},
number = {22},
pages = {18204-18217},
abstract = {The objective of this study was to evaluate the sorption efficiency of eight biochars, made from miscanthus x giganteus cultivated on contaminated agricultural soil, in aqueous solutions contaminated with metals alone or mixed with polycyclic aromatic hydrocarbons. these biochars were produced in different pyrolysis conditions (temperature, 400/600 °c; heating rate, 5/10 °c min−1; duration, 45/90 min) and compared with an uncontaminated commercialized biochar made of wood. the physicochemical characterization of the miscanthus biochars confirmed the impact of the pyrolysis on the biochar parameters with substantial differences between the biochars in terms of ph, cation exchange capacity, and specific surface area. the sorption experiment showed higher sorption efficiency of cd, pb, and zn for the miscanthus biochars produced at 600 °c compared with the biochars produced at 400 °c when the aqueous solutions were mono- or multicontaminated. furthermore, the desorption study showed that the sorption process was largely irreversible. therefore, the high sorption capacity of miscanthus biochars and the low sorption reversibility confirmed that these biochars are a suitable sorbent for metals.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The objective of this study was to evaluate the sorption efficiency of eight biochars, made from miscanthus x giganteus cultivated on contaminated agricultural soil, in aqueous solutions contaminated with metals alone or mixed with polycyclic aromatic hydrocarbons. these biochars were produced in different pyrolysis conditions (temperature, 400/600 °c; heating rate, 5/10 °c min−1; duration, 45/90 min) and compared with an uncontaminated commercialized biochar made of wood. the physicochemical characterization of the miscanthus biochars confirmed the impact of the pyrolysis on the biochar parameters with substantial differences between the biochars in terms of ph, cation exchange capacity, and specific surface area. the sorption experiment showed higher sorption efficiency of cd, pb, and zn for the miscanthus biochars produced at 600 °c compared with the biochars produced at 400 °c when the aqueous solutions were mono- or multicontaminated. furthermore, the desorption study showed that the sorption process was largely irreversible. therefore, the high sorption capacity of miscanthus biochars and the low sorption reversibility confirmed that these biochars are a suitable sorbent for metals. |
2017Conférence ER4 Auteurs : Pelfrêne, Aurélie Projet ODESSA: Amélioration de l’évaluation des risques encourus par les populations exposées aux sols pollués en proposant une méthode alternative au test UBM, rapide, moins coûteuse, fiable, représentative de la bioaccessibilité gastro-intestinale des ETM et applicable dans différents contextes environnementaux Colloque ADEME Sites et Sols pollués, 10-11 mai 2017, Paris, 2017, (ACTN). @conference{Pelfrene2017a,
title = {Projet ODESSA: Amélioration de l’évaluation des risques encourus par les populations exposées aux sols pollués en proposant une méthode alternative au test UBM, rapide, moins coûteuse, fiable, représentative de la bioaccessibilité gastro-intestinale des ETM et applicable dans différents contextes environnementaux},
author = {Aurélie Pelfrêne},
year = {2017},
date = {2017-01-01},
booktitle = {Colloque ADEME Sites et Sols pollués, 10-11 mai 2017, Paris},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2017Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Cave, Mark-R.; Wragg, Joanna; Douay, Francis In vitro investigations of human bioaccessibility from reference materials using simulated lung fluids International Journal of Environmental Research and Public Health, vol. 14, no. 2, p. 112, 2017, (ACL). @article{Pelfrene2017b,
title = {In vitro investigations of human bioaccessibility from reference materials using simulated lung fluids},
author = {Aurélie Pelfrêne and Mark-R. Cave and Joanna Wragg and Francis Douay},
year = {2017},
date = {2017-01-01},
journal = {International Journal of Environmental Research and Public Health},
volume = {14},
number = {2},
pages = {112},
abstract = {An investigation for assessing pulmonary bioaccessibility of metals from reference materials is presented using simulated lung fluids. the objective of this paper was to contribute to an enhanced understanding of airborne particulate matter and its toxic potential following inhalation. a large set of metallic elements (ba, cd, co, cr, cu, mn, ni, pb, sr, and zn) was investigated using three lung fluids (phosphate-buffered saline, gamble’s solution and artificial lysosomal fluid) on three standard reference materials representing different types of particle sources. composition of the leaching solution and four solid-to-liquid (s/l) ratios were tested. the results showed that bioaccessibility was speciation- (i.e., distribution) and element-dependent, with percentages varying from 0.04% for pb to 86.0% for cd. the higher extraction of metallic elements was obtained with the artificial lysosomal fluid, in which a relative stability of bioaccessibility was observed in a large range of s/l ratios from 1/1000 to 1/10,000. for further investigations, it is suggested that this method be used to assess lung bioaccessibility of metals from smelter-impacted dusts.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
An investigation for assessing pulmonary bioaccessibility of metals from reference materials is presented using simulated lung fluids. the objective of this paper was to contribute to an enhanced understanding of airborne particulate matter and its toxic potential following inhalation. a large set of metallic elements (ba, cd, co, cr, cu, mn, ni, pb, sr, and zn) was investigated using three lung fluids (phosphate-buffered saline, gamble’s solution and artificial lysosomal fluid) on three standard reference materials representing different types of particle sources. composition of the leaching solution and four solid-to-liquid (s/l) ratios were tested. the results showed that bioaccessibility was speciation- (i.e., distribution) and element-dependent, with percentages varying from 0.04% for pb to 86.0% for cd. the higher extraction of metallic elements was obtained with the artificial lysosomal fluid, in which a relative stability of bioaccessibility was observed in a large range of s/l ratios from 1/1000 to 1/10,000. for further investigations, it is suggested that this method be used to assess lung bioaccessibility of metals from smelter-impacted dusts. |
2017Conférence ER4 Auteurs : Pelfrêne, Aurélie; Sahmer, Karin; Grard, Olivier; Heyman, Christophe; Douay, Francis De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers: Un retour d’expérience dans un contexte urbain fortement contaminé par les métaux International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse, 2017, (AFF). @conference{Pelfrene2017bb,
title = {De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers: Un retour d’expérience dans un contexte urbain fortement contaminé par les métaux},
author = {Aurélie Pelfrêne and Karin Sahmer and Olivier Grard and Christophe Heyman and Francis Douay},
year = {2017},
date = {2017-01-01},
booktitle = {International congress - Sustainable Urban Agricultures: Vector for the Ecological Transition, 6-9 juin 2017, Toulouse},
abstract = {Jusqu’à récemment, le jardinage avait souvent pour vocation principale de subvenir aux besoins alimentaires. de nos jours, les motivations des jardiniers sont beaucoup plus variées et il est admis que le jardin joue aussi un rôle social et de support de biodiversité. si le jardinage est effectué le plus souvent en milieu rural (près de 51% selon l’insee, 1993), il se pratique aussi de plus en plus souvent en milieu périurbain ou urbain. se pose alors la question de la qualité des sols et des productions cultivées au regard de pollutions potentielles résultant des activités humaines (chauffage urbain, circulation automobile, activités industrielles…). cette problématique, qui reste rarement étudiée, est d’autant plus importante dans les régions avec un lourd passé industriel comme dans l’ancien bassin minier du nord – pas de calais. depuis plus de 20 ans, des travaux y sont réalisés et ceci, plus spécifiquement dans un secteur compris entre lens et douai où deux fonderies de plomb et de zinc ont rejeté par le passé des quantités considérables de poussières métalliques. leurs retombées ont conduit à une contamination massive des sols notamment en plomb, cadmium et zinc. en partenariat avec les services sanitaires et pour évaluer les dangers, des investigations sont menées dans les jardins aux alentours de l’ancienne fonderie de plomb metaleurop nord (noyelles-godault) où plus de 900 potagers ont été repérés au moyen de photographies aériennes. sur les 530 jardiniers qui ont été sollicités pour participer à une étude visant à mieux connaître ces milieux et les dangers associés à leur contamination, 115 ont accepté. l’échantillonnage des sols et des productions a été réalisé durant l’année culturale 2013. les pratiques culturales et les habitudes alimentaires ont aussi été caractérisées au moyen d’enquêtes. les résultats ont confirmé le très fort degré de contamination de la plupart des sols des jardins étudiés, lequel ne peut être expliqué par les seules retombées de poussières. des apports de matériaux contaminés et diverses pratiques ont souvent conduit à accroître notablement les concentrations en polluants des sols. il a été dressé un bilan des productions selon leur aptitude à accumuler les métaux dans les organes consommés et préparés comme le ferait un consommateur soigneux (lavage, épluchage). sur les 1566 échantillons de légumes, aromates et fruits analysés, 51% présentent des concentrations en cadmium et plomb qui excèdent les valeurs réglementant la consommation des denrées alimentaires. au regard de ces résultats, s’est posée la question de l’exposition des jardiniers en lien avec la consommation de leurs productions potagères mais aussi avec l’ingestion de particules de sols. pour mieux évaluer cette exposition, la bioaccessibilité orale des métaux a été prise en compte au lieu des concentrations totales classiquement mesurées dans les légumes et les sols. les résultats obtenus ont été présentés aux jardiniers lors d’entretiens individuels. la restitution a été complétée par des préconisations culturales et/ou alimentaires personnalisées visant à réduire l’imprégnation des populations au plomb et au cadmium. l’évaluation des effets de ces restitutions sur les pratiques a été réalisée un an après la fin de la restitution sur la base d’un nouvel entretien avec les jardiniers concernés. sera présenté un retour d’expérience sur cette démarche, de l’échantillonnage des sols et des productions jusqu’à la restitution auprès des jardiniers des données acquises.},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Jusqu’à récemment, le jardinage avait souvent pour vocation principale de subvenir aux besoins alimentaires. de nos jours, les motivations des jardiniers sont beaucoup plus variées et il est admis que le jardin joue aussi un rôle social et de support de biodiversité. si le jardinage est effectué le plus souvent en milieu rural (près de 51% selon l’insee, 1993), il se pratique aussi de plus en plus souvent en milieu périurbain ou urbain. se pose alors la question de la qualité des sols et des productions cultivées au regard de pollutions potentielles résultant des activités humaines (chauffage urbain, circulation automobile, activités industrielles…). cette problématique, qui reste rarement étudiée, est d’autant plus importante dans les régions avec un lourd passé industriel comme dans l’ancien bassin minier du nord – pas de calais. depuis plus de 20 ans, des travaux y sont réalisés et ceci, plus spécifiquement dans un secteur compris entre lens et douai où deux fonderies de plomb et de zinc ont rejeté par le passé des quantités considérables de poussières métalliques. leurs retombées ont conduit à une contamination massive des sols notamment en plomb, cadmium et zinc. en partenariat avec les services sanitaires et pour évaluer les dangers, des investigations sont menées dans les jardins aux alentours de l’ancienne fonderie de plomb metaleurop nord (noyelles-godault) où plus de 900 potagers ont été repérés au moyen de photographies aériennes. sur les 530 jardiniers qui ont été sollicités pour participer à une étude visant à mieux connaître ces milieux et les dangers associés à leur contamination, 115 ont accepté. l’échantillonnage des sols et des productions a été réalisé durant l’année culturale 2013. les pratiques culturales et les habitudes alimentaires ont aussi été caractérisées au moyen d’enquêtes. les résultats ont confirmé le très fort degré de contamination de la plupart des sols des jardins étudiés, lequel ne peut être expliqué par les seules retombées de poussières. des apports de matériaux contaminés et diverses pratiques ont souvent conduit à accroître notablement les concentrations en polluants des sols. il a été dressé un bilan des productions selon leur aptitude à accumuler les métaux dans les organes consommés et préparés comme le ferait un consommateur soigneux (lavage, épluchage). sur les 1566 échantillons de légumes, aromates et fruits analysés, 51% présentent des concentrations en cadmium et plomb qui excèdent les valeurs réglementant la consommation des denrées alimentaires. au regard de ces résultats, s’est posée la question de l’exposition des jardiniers en lien avec la consommation de leurs productions potagères mais aussi avec l’ingestion de particules de sols. pour mieux évaluer cette exposition, la bioaccessibilité orale des métaux a été prise en compte au lieu des concentrations totales classiquement mesurées dans les légumes et les sols. les résultats obtenus ont été présentés aux jardiniers lors d’entretiens individuels. la restitution a été complétée par des préconisations culturales et/ou alimentaires personnalisées visant à réduire l’imprégnation des populations au plomb et au cadmium. l’évaluation des effets de ces restitutions sur les pratiques a été réalisée un an après la fin de la restitution sur la base d’un nouvel entretien avec les jardiniers concernés. sera présenté un retour d’expérience sur cette démarche, de l’échantillonnage des sols et des productions jusqu’à la restitution auprès des jardiniers des données acquises. |
2017Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Le-Bot, Barbara; Glorennec, Philippe; Douay, Francis A decision-making tool for managing franch polluted sites: Toward an alternative approach to the Unified Barge Method 6-9 November 2017, Varsovie (Pologne), 2017, (AFF). @conference{Pelfrene2017c,
title = {A decision-making tool for managing franch polluted sites: Toward an alternative approach to the Unified Barge Method},
author = {Aurélie Pelfrêne and Christophe Waterlot and Barbara Le-Bot and Philippe Glorennec and Francis Douay},
year = {2017},
date = {2017-01-01},
booktitle = {6-9 November 2017, Varsovie (Pologne)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2017Article de journal ER4 Auteurs : Waterlot, Christophe; Douay, Francis; Pelfrêne, Aurélie Chemical availability of Cd, Pb and Zn in anthropogenically polluted soil: Assessing the geochemical reactivity and oral bioaccessibility Pedosphere, vol. 27, no. 3, p. 616-629, 2017, (ACL). @article{Waterlot2017b,
title = {Chemical availability of Cd, Pb and Zn in anthropogenically polluted soil: Assessing the geochemical reactivity and oral bioaccessibility},
author = {Christophe Waterlot and Francis Douay and Aurélie Pelfrêne},
year = {2017},
date = {2017-01-01},
journal = {Pedosphere},
volume = {27},
number = {3},
pages = {616-629},
abstract = {The most recent in vitro tests used to determine metal bioaccessiblility are generally time-consuming and expensive. this study aimed at determining potential relationships between the concentrations of metals extracted using single-extraction methods and the concentrations of bioaccessible metals assessed by a harmonised in vitro test, the unified barge method (ubm). a total number of 27 soil samples were collected from kitchen gardens and lawns with various physicochemical parameters and contamination levels. significant relationships were obtained between cd, pb and zn extracted in gastric and gastrointestinal phases and using single extractions. the best relationhips were established using acetic and citric acids for cd, whereas for pb, citric acid and ethylenediaminetetraacetic acid (edta) were identified as the best extractants. these relationships were improved by means of a linear multiple regression with a downward stepwise procedure involving agronomic parameters (soil cation exchange capacity and assimilated p). this method highlighted the fact that the cation exchange capacity and p contents in soils were the two main parameters that controlled the human bioaccessibility of cd, pb and zn in the gastric phase. besides, the metal concentrations extracted with the acetic and citric acids correlated well with the metal concentrations in the gastric and gastrointestinal phases, suggesting that the bioaccessible metals were mainly in a soluble form, weakly bound to the organic matter and associated with the carbonates and the fe and mn oxides/hydroxides in soils.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The most recent in vitro tests used to determine metal bioaccessiblility are generally time-consuming and expensive. this study aimed at determining potential relationships between the concentrations of metals extracted using single-extraction methods and the concentrations of bioaccessible metals assessed by a harmonised in vitro test, the unified barge method (ubm). a total number of 27 soil samples were collected from kitchen gardens and lawns with various physicochemical parameters and contamination levels. significant relationships were obtained between cd, pb and zn extracted in gastric and gastrointestinal phases and using single extractions. the best relationhips were established using acetic and citric acids for cd, whereas for pb, citric acid and ethylenediaminetetraacetic acid (edta) were identified as the best extractants. these relationships were improved by means of a linear multiple regression with a downward stepwise procedure involving agronomic parameters (soil cation exchange capacity and assimilated p). this method highlighted the fact that the cation exchange capacity and p contents in soils were the two main parameters that controlled the human bioaccessibility of cd, pb and zn in the gastric phase. besides, the metal concentrations extracted with the acetic and citric acids correlated well with the metal concentrations in the gastric and gastrointestinal phases, suggesting that the bioaccessible metals were mainly in a soluble form, weakly bound to the organic matter and associated with the carbonates and the fe and mn oxides/hydroxides in soils. |
2016Conférence ER4 Auteurs : Détriché, Sébastien; Pelfrêne, Aurélie; Pinte, Emilie; Cheppe, Gaëtan; Douay, Francis Les sols urbains de la Métropole Européenne de Lille (France) : Premiers éléments de caractérisation et enjeux 13èmes Journées d’étude des sols, 4-8 juillet 2016, Louvain-la-Neuve (Belgique), 2016, (AFF). @conference{Detriche2016,
title = {Les sols urbains de la Métropole Européenne de Lille (France) : Premiers éléments de caractérisation et enjeux},
author = {Sébastien Détriché and Aurélie Pelfrêne and Emilie Pinte and Gaëtan Cheppe and Francis Douay},
year = {2016},
date = {2016-01-01},
booktitle = {13èmes Journées d’étude des sols, 4-8 juillet 2016, Louvain-la-Neuve (Belgique)},
abstract = {Les études se focalisant sur les environnements et les sols urbains se sont multipliées au cours des dernières décennies, notamment en raison d’une urbanisation croissante au détriment des terres agricoles. de forts enjeux environnementaux, économiques, sociaux et sanitaires sont clairement identifiés quant à la connaissance et à la maîtrise de ces espaces en termes de gestion et de planification urbaine. les sols urbains constituent un compartiment environnemental complexe, réactif et susceptible d’assurer des services écosystémiques majeurs bien que soumis à des pressions anthropiques passées et actuelles fortes. les besoins de connaissance sur la qualité de ces sols et leur distribution spatiale sont en plein développement malgré les difficultés rencontrées en raison de fortes variabilités spatiales du degré d’anthropisation des sols, de l’hétérogénéité des méthodes d’échantillonnage et d’analyse, et de l’absence fréquente de valeurs de référence nationales en milieu urbain pour la caractérisation des pollutions. la problématique de la qualité des sols urbains et plus particulièrement celle des productions légumières au sein des jardins ou de requalification de friches industrielles est particulièrement importante sur le territoire de la métropole lilloise du fait de son lourd passé industriel, de sa forte densité de population et de l’étendue des surfaces urbanisées. ce travail se propose de porter un regard croisé sur les paramètres pédologiques et physico-chimiques de sols urbains (paramètres agronomiques classiques, degré de contamination en métaux et polluants organiques, teneurs et nature des éléments grossiers...) caractérisés sur de la métropole lilloise lors de différents programmes de recherches. ces sols ont été caractérisés dans différents contextes environnementaux tels que des délaissés infrastructuraux, des friches industrielles, des jardins familiaux et partagés... ils présentent des caractéristiques en lien étroit avec les usages des espaces étudiés et ce, au regard des activités anthropiques passées et actuelles au droit des sites (activités industrielles, remaniements, apports et altération de matériaux, pratiques culturales...) et/ou de la proximité actuelle ou passée de potentielles sources de contamination (industries, infrastructures de transport, chauffage urbain...)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Les études se focalisant sur les environnements et les sols urbains se sont multipliées au cours des dernières décennies, notamment en raison d’une urbanisation croissante au détriment des terres agricoles. de forts enjeux environnementaux, économiques, sociaux et sanitaires sont clairement identifiés quant à la connaissance et à la maîtrise de ces espaces en termes de gestion et de planification urbaine. les sols urbains constituent un compartiment environnemental complexe, réactif et susceptible d’assurer des services écosystémiques majeurs bien que soumis à des pressions anthropiques passées et actuelles fortes. les besoins de connaissance sur la qualité de ces sols et leur distribution spatiale sont en plein développement malgré les difficultés rencontrées en raison de fortes variabilités spatiales du degré d’anthropisation des sols, de l’hétérogénéité des méthodes d’échantillonnage et d’analyse, et de l’absence fréquente de valeurs de référence nationales en milieu urbain pour la caractérisation des pollutions. la problématique de la qualité des sols urbains et plus particulièrement celle des productions légumières au sein des jardins ou de requalification de friches industrielles est particulièrement importante sur le territoire de la métropole lilloise du fait de son lourd passé industriel, de sa forte densité de population et de l’étendue des surfaces urbanisées. ce travail se propose de porter un regard croisé sur les paramètres pédologiques et physico-chimiques de sols urbains (paramètres agronomiques classiques, degré de contamination en métaux et polluants organiques, teneurs et nature des éléments grossiers...) caractérisés sur de la métropole lilloise lors de différents programmes de recherches. ces sols ont été caractérisés dans différents contextes environnementaux tels que des délaissés infrastructuraux, des friches industrielles, des jardins familiaux et partagés... ils présentent des caractéristiques en lien étroit avec les usages des espaces étudiés et ce, au regard des activités anthropiques passées et actuelles au droit des sites (activités industrielles, remaniements, apports et altération de matériaux, pratiques culturales...) et/ou de la proximité actuelle ou passée de potentielles sources de contamination (industries, infrastructures de transport, chauffage urbain...) |
2016Conférence ER4 Auteurs : Douay, Francis; Pelfrêne, Aurélie Etat des connaissances sur les sols, usages et productions potagères dans les jardins français Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux, 2016, (COM). @conference{Douay2016,
title = {Etat des connaissances sur les sols, usages et productions potagères dans les jardins français},
author = {Francis Douay and Aurélie Pelfrêne},
year = {2016},
date = {2016-01-01},
booktitle = {Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2016Conférence ER4 Auteurs : Douay, Francis; Pelfrêne, Aurélie Retour d’expérience sur la problématique des jardins affectés massivement par les activités passées de Metaleurop Nord: Projet REPJAR Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux, 2016, (COM). @conference{Douay2016a,
title = {Retour d’expérience sur la problématique des jardins affectés massivement par les activités passées de Metaleurop Nord: Projet REPJAR},
author = {Francis Douay and Aurélie Pelfrêne},
year = {2016},
date = {2016-01-01},
booktitle = {Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2016Article de journal ER4 Auteurs : Heger, Z; Rodrigo, M A; Krizkova, S; Ruttkay-Nedecky, B; Zalewska, M; Del-Pozo, E M; Pelfrêne, Aurélie; Pourrut, Bertrand; Stiborova, M; Eckschlager, T; Emri, G; Kizek, R; Adam, V Metallothionein as a scavenger of free radicals-new cardioprotective therapeutic agent or initiator of tumor chemoresistance? Current Drug Targets, vol. 17, no. 12, p. 1438-1451, 2016, (ACL). @article{Heger2016,
title = {Metallothionein as a scavenger of free radicals-new cardioprotective therapeutic agent or initiator of tumor chemoresistance?},
author = {Z Heger and M A Rodrigo and S Krizkova and B Ruttkay-Nedecky and M Zalewska and E M Del-Pozo and Aurélie Pelfrêne and Bertrand Pourrut and M Stiborova and T Eckschlager and G Emri and R Kizek and V Adam},
year = {2016},
date = {2016-01-01},
journal = {Current Drug Targets},
volume = {17},
number = {12},
pages = {1438-1451},
abstract = {Cardiotoxicity is a serious complication of anticancer therapy by anthracycline antibiotics. except for intercalation into dna/rna structure, inhibition of dna-topoisomerase and histone eviction from chromatin, the main mechanism of their action is iron-mediated formation of various forms of free radicals, which leads to irreversible damage to cancer cells. the most serious adverse effect of anthracyclines is, thus, cardiomyopathy leading to congestive heart failure, which is caused by the same mechanisms. here, we briefly summarize the basic types of free radicals formed by anthracyclines and the main processes how to scavenge them. from these, the main attention is paid to metallothioneins. these low-molecular cysteine-rich proteins are introduced and their functions and properties are reviewed. further, their role in detoxification of metals and drugs is discussed. based on these beneficial roles, their use as a new therapeutic agent against oxidative stress and for cardioprotection is critically evaluated with respect to their ability to increase chemoresistance against some types of commonly used cytostatics},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Cardiotoxicity is a serious complication of anticancer therapy by anthracycline antibiotics. except for intercalation into dna/rna structure, inhibition of dna-topoisomerase and histone eviction from chromatin, the main mechanism of their action is iron-mediated formation of various forms of free radicals, which leads to irreversible damage to cancer cells. the most serious adverse effect of anthracyclines is, thus, cardiomyopathy leading to congestive heart failure, which is caused by the same mechanisms. here, we briefly summarize the basic types of free radicals formed by anthracyclines and the main processes how to scavenge them. from these, the main attention is paid to metallothioneins. these low-molecular cysteine-rich proteins are introduced and their functions and properties are reviewed. further, their role in detoxification of metals and drugs is discussed. based on these beneficial roles, their use as a new therapeutic agent against oxidative stress and for cardioprotection is critically evaluated with respect to their ability to increase chemoresistance against some types of commonly used cytostatics |
2016Conférence ER4 Auteurs : Janus, Adeline; Pelfrêne, Aurélie; Sahmer, Karin; Heymans, Sophie; Deboffe, Christophe; Douay, Francis; Waterlot, Christophe Value of Miscanthus biochars to decrease the availability of metals in aqueous solutions International Conference Contaminated Sites 2016, 12-13 September 2016, Bratislava (Slovakia), 2016, (AFF). @conference{Janus2016,
title = {Value of Miscanthus biochars to decrease the availability of metals in aqueous solutions},
author = {Adeline Janus and Aurélie Pelfrêne and Karin Sahmer and Sophie Heymans and Christophe Deboffe and Francis Douay and Christophe Waterlot},
year = {2016},
date = {2016-01-01},
booktitle = {International Conference Contaminated Sites 2016, 12-13 September 2016, Bratislava (Slovakia)},
abstract = {Introduction in europe, more than 2.5 millions of potentially contaminated site a new approach: use biochars produced with biomass cultivated on agricultural soils contaminated by metals biochar production materials and methods results conclusions the pyrolysis process impacts the biochar characteristics. the biochars produced at 600 °c show the highest ssa and ph and the lowest cec. the biochars show a high efficiency to sorb the three metals, especially those produced at 600°c. the presence of metals and pahs affect the removal efficiency, notably for the biochars produced at 400°c. the high sorption capacity of miscanthus biochars confirmed these biochars as suitable sorbent for cd, pb and zn.},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Introduction in europe, more than 2.5 millions of potentially contaminated site a new approach: use biochars produced with biomass cultivated on agricultural soils contaminated by metals biochar production materials and methods results conclusions the pyrolysis process impacts the biochar characteristics. the biochars produced at 600 °c show the highest ssa and ph and the lowest cec. the biochars show a high efficiency to sorb the three metals, especially those produced at 600°c. the presence of metals and pahs affect the removal efficiency, notably for the biochars produced at 400°c. the high sorption capacity of miscanthus biochars confirmed these biochars as suitable sorbent for cd, pb and zn. |
2016Thèse ER4 Auteurs : Pelfrêne, Aurélie Bioaccessibilité des polluants métalliques - Apport à l’évaluation de l’exposition des populations vivant sur des sites contaminés HDR Université Lille 1, 224pp, 2016, (TH HDR). @phdthesis{Pelfrene2016c,
title = {Bioaccessibilité des polluants métalliques - Apport à l’évaluation de l’exposition des populations vivant sur des sites contaminés},
author = {Aurélie Pelfrêne},
year = {2016},
date = {2016-01-01},
school = {HDR Université Lille 1, 224pp},
abstract = {Dans les régions industrialisées, les concentrations en polluants métalliques des différents compartiments environnementaux, et notamment des sols, se sont accrues depuis de nombreuses années, au point parfois d’affecter grandement leur qualité et leurs fonctions. cet enrichissement en métaux dans les sols est très variable dans le temps et dans l’espace et peut présenter des dangers environnementaux mais également, sanitaires pour les populations, notamment celles vivant dans des environnements industriels ou ayant été affectés par le passé par des émissions atmosphériques. parmi les enjeux de la gestion des sites et sols contaminés, l’évaluation de l’exposition des populations aux polluants métalliques est une question scientifique majeure. la présence de métaux dans les sols entraîne des expositions directes, en lien avec l’ingestion et l’inhalation de particules de terre et de poussières, ou indirectes, en lien avec la consommation de denrées autoproduites (légumes ou fruits dans les jardins potagers). la plupart des diagnostics de sites ont pour objectif de mesurer les concentrations totales de polluants dans le sol, les poussières ou les végétaux. il est alors implicitement considéré que la totalité du polluant est à même de pénétrer dans l’organisme et d’y exercer un effet toxique. or, des études ont montré que la concentration totale d’un élément présent dans une matrice donnée n’est pas un bon indicateur du potentiel d’exposition de la population. en effet, seule la fraction biodisponible du polluant, représentative de la fraction absorbée par un organisme, est réellement assimilée par l’organisme et est susceptible d’induire un effet toxique. or, la biodisponibilité d’un élément peut considérablement varier en fonction de la nature de la matrice (terre, poussières, eau, aliment…). dans une démarche d’évaluation plus pertinente du risque sanitaire, disposer d’information sur la biodisponibilité orale des polluants métalliques est un atout indéniable. ainsi, la biodisponibilité des polluants dans les différentes matrices est un paramètre clef pour l’estimation de l’exposition aux polluants. l’accès à des méthodes validées pour estimer cette biodisponibilité permettrait de proposer des préconisations plus réalistes, de réduire potentiellement le nombre de sites considérés comme dangereux, et donc, de réduire les coûts de remédiation de sites, tout en restant à un même niveau de protection sanitaire. la biodisponibilité des polluants, particulièrement en lien avec l’ingestion de particules de terre et de productions contaminées, est souvent estimée par la mesure de la bioaccessibilité orale (i.e. la fraction du contaminant extraite par les fluides digestifs) au moyen de tests in vitro. en dépit de nombreux travaux entrepris pour mesurer la bioaccessibilité, celle-ci n’est pas encore intégrée comme un outil d’évaluation des risques et de gestion des sites. au regard de ce constat, il apparaît indispensable de mieux intégrer la notion de biodisponibilité dans la gestion des sols contaminés. la question est toutefois de s’assurer qu’une telle intégration permettrait d’accroître la pertinence des calculs d’exposition aux polluants et ainsi, de gérer aux mieux la problématique des sols contaminés. dans cet objectif, les différents aspects de la problématique ont été examinés dans le présent mémoire en se basant sur des illustrations issues de mes recherches qui ont porté sur l’étude de l’exposition des populations aux polluants métalliques en prenant en compte les voies d’apport suivantes : l’ingestion de particules de terre et de poussières, la consommation de denrées et l’inhalation de poussières. les travaux que j’ai menés depuis 2008, essentiellement sur le site atelier metaleurop, ont contribué à évaluer la disponibilité environnementale puis toxicologique et ont permis d’alimenter une réflexion plus large autour de la pertinence actuelle des méthodes utilisées pour l’évaluation et la gestion des sols pollués. cette recherche pluridisciplinaire s’est faite dans le cadre de plusieurs partenariats à l’échelle nationale mais aussi internationale, notamment en tant que membre actif d’un groupe de recherche sur la bioaccessibilité (barge). mon projet de recherche a pour objectif de renforcer le positionnement du laboratoire sur la thématique liée à l’évaluation des risques et à la gestion sanitaire des sites contaminés, en s’intéressant notamment à d’autres polluants (en particulier organiques), à d’autres matrices telles que les sédiments et ce, en proposant de nouveaux outils chimiques et géochimiques.},
note = {TH HDR},
keywords = {ER4},
pubstate = {published},
tppubtype = {phdthesis}
}
Dans les régions industrialisées, les concentrations en polluants métalliques des différents compartiments environnementaux, et notamment des sols, se sont accrues depuis de nombreuses années, au point parfois d’affecter grandement leur qualité et leurs fonctions. cet enrichissement en métaux dans les sols est très variable dans le temps et dans l’espace et peut présenter des dangers environnementaux mais également, sanitaires pour les populations, notamment celles vivant dans des environnements industriels ou ayant été affectés par le passé par des émissions atmosphériques. parmi les enjeux de la gestion des sites et sols contaminés, l’évaluation de l’exposition des populations aux polluants métalliques est une question scientifique majeure. la présence de métaux dans les sols entraîne des expositions directes, en lien avec l’ingestion et l’inhalation de particules de terre et de poussières, ou indirectes, en lien avec la consommation de denrées autoproduites (légumes ou fruits dans les jardins potagers). la plupart des diagnostics de sites ont pour objectif de mesurer les concentrations totales de polluants dans le sol, les poussières ou les végétaux. il est alors implicitement considéré que la totalité du polluant est à même de pénétrer dans l’organisme et d’y exercer un effet toxique. or, des études ont montré que la concentration totale d’un élément présent dans une matrice donnée n’est pas un bon indicateur du potentiel d’exposition de la population. en effet, seule la fraction biodisponible du polluant, représentative de la fraction absorbée par un organisme, est réellement assimilée par l’organisme et est susceptible d’induire un effet toxique. or, la biodisponibilité d’un élément peut considérablement varier en fonction de la nature de la matrice (terre, poussières, eau, aliment…). dans une démarche d’évaluation plus pertinente du risque sanitaire, disposer d’information sur la biodisponibilité orale des polluants métalliques est un atout indéniable. ainsi, la biodisponibilité des polluants dans les différentes matrices est un paramètre clef pour l’estimation de l’exposition aux polluants. l’accès à des méthodes validées pour estimer cette biodisponibilité permettrait de proposer des préconisations plus réalistes, de réduire potentiellement le nombre de sites considérés comme dangereux, et donc, de réduire les coûts de remédiation de sites, tout en restant à un même niveau de protection sanitaire. la biodisponibilité des polluants, particulièrement en lien avec l’ingestion de particules de terre et de productions contaminées, est souvent estimée par la mesure de la bioaccessibilité orale (i.e. la fraction du contaminant extraite par les fluides digestifs) au moyen de tests in vitro. en dépit de nombreux travaux entrepris pour mesurer la bioaccessibilité, celle-ci n’est pas encore intégrée comme un outil d’évaluation des risques et de gestion des sites. au regard de ce constat, il apparaît indispensable de mieux intégrer la notion de biodisponibilité dans la gestion des sols contaminés. la question est toutefois de s’assurer qu’une telle intégration permettrait d’accroître la pertinence des calculs d’exposition aux polluants et ainsi, de gérer aux mieux la problématique des sols contaminés. dans cet objectif, les différents aspects de la problématique ont été examinés dans le présent mémoire en se basant sur des illustrations issues de mes recherches qui ont porté sur l’étude de l’exposition des populations aux polluants métalliques en prenant en compte les voies d’apport suivantes : l’ingestion de particules de terre et de poussières, la consommation de denrées et l’inhalation de poussières. les travaux que j’ai menés depuis 2008, essentiellement sur le site atelier metaleurop, ont contribué à évaluer la disponibilité environnementale puis toxicologique et ont permis d’alimenter une réflexion plus large autour de la pertinence actuelle des méthodes utilisées pour l’évaluation et la gestion des sols pollués. cette recherche pluridisciplinaire s’est faite dans le cadre de plusieurs partenariats à l’échelle nationale mais aussi internationale, notamment en tant que membre actif d’un groupe de recherche sur la bioaccessibilité (barge). mon projet de recherche a pour objectif de renforcer le positionnement du laboratoire sur la thématique liée à l’évaluation des risques et à la gestion sanitaire des sites contaminés, en s’intéressant notamment à d’autres polluants (en particulier organiques), à d’autres matrices telles que les sédiments et ce, en proposant de nouveaux outils chimiques et géochimiques. |
2016Conférence ER4 Auteurs : Pelfrêne, Aurélie; Douay, Francis De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux, 2016, (COM). @conference{Pelfrene2016b,
title = {De l’acquisition de données environnementales et sociales à l’évaluation de l’exposition des jardiniers},
author = {Aurélie Pelfrêne and Francis Douay},
year = {2016},
date = {2016-01-01},
booktitle = {Journée Parc Naturel Régional Scarpe - Escaut, Conseil Scientifique de l’Environnement, 2 décembre 2016, Saint-Amand-les-Eaux},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2016Conférence ER4 Auteurs : Pelfrêne, Aurélie; Grard, Olivier; Heyman, Christophe; Douay, Francis Assessment of oral and lung bioaccessibilities of metals from smelter-impacted dust The 3rd International Symposium on Environment and Health, 14-20 August 2016, Galway (Ireland), 2016, (AFF). @conference{Pelfrene2016a,
title = {Assessment of oral and lung bioaccessibilities of metals from smelter-impacted dust},
author = {Aurélie Pelfrêne and Olivier Grard and Christophe Heyman and Francis Douay},
year = {2016},
date = {2016-01-01},
booktitle = {The 3rd International Symposium on Environment and Health, 14-20 August 2016, Galway (Ireland)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2016Conférence ER4 Auteurs : Pelfrêne, Aurélie; Grard, Olivier; Heyman, Christophe; Triquet, Judith; Douay, Francis Comment continuer à consommer ses fruits et légumes cultivés dans un contexte contaminé? Retour d’expérience. Rencontres Internationales de Liessies « Les sols nourriciers », 22 septembre 2016, Liessies, 2016, (ACTN). @conference{Pelfrene2016bb,
title = {Comment continuer à consommer ses fruits et légumes cultivés dans un contexte contaminé?},
author = {Aurélie Pelfrêne and Olivier Grard and Christophe Heyman and Judith Triquet and Francis Douay},
year = {2016},
date = {2016-01-01},
booktitle = {Retour d’expérience. Rencontres Internationales de Liessies « Les sols nourriciers », 22 septembre 2016, Liessies},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2016Article de journal ER4 Auteurs : Waterlot, Christophe; Pelfrêne, Aurélie; Douay, Francis Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods: A preliminary study Journal of Environmental Sciences, vol. 47, p. 183-192, 2016, (ACL). @article{Waterlot2016a,
title = {Determining the influence of the physicochemical parameters of urban soils on As availability using chemometric methods: A preliminary study},
author = {Christophe Waterlot and Aurélie Pelfrêne and Francis Douay},
year = {2016},
date = {2016-01-01},
journal = {Journal of Environmental Sciences},
volume = {47},
pages = {183-192},
abstract = {An initial exploration was conducted using mathematical and statistical
methods to obtain relevant information about the determination of
the physicochemical parameters capable of controlling As uptake by
ryegrass grown on contaminated topsoils. Concentrations of As in
the soils were from 10 to 47 mg/kg, mainly in the As(V) form (57%–73%).
Concentrations of As in water extracts were very low (61–700 μg/kg).
It was suggested that As(III) was mainly in the uncharged species
and As(V) in the charged species. Chemometric methods revealed that
the values of the ratio As(III)/As(V) depended on the assimilated-phosphorus,
the pseudo-total and water-extractable Fe contents and the soil pH.
Arsenic concentrations measured in ryegrass shoots ranged from 119
to 1602 μg/kg. Positive linear correlations were obtained between
As in ryegrass shoots and water extractable-As. The transfer coefficient
of As correlated well with the ratio assimilated-phosphorus/Fe-oxides.
As(III) uptake by the shoot of ryegrass was controlled by the organic
matter and Fe-oxide contents.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
An initial exploration was conducted using mathematical and statistical
methods to obtain relevant information about the determination of
the physicochemical parameters capable of controlling As uptake by
ryegrass grown on contaminated topsoils. Concentrations of As in
the soils were from 10 to 47 mg/kg, mainly in the As(V) form (57%–73%).
Concentrations of As in water extracts were very low (61–700 μg/kg).
It was suggested that As(III) was mainly in the uncharged species
and As(V) in the charged species. Chemometric methods revealed that
the values of the ratio As(III)/As(V) depended on the assimilated-phosphorus,
the pseudo-total and water-extractable Fe contents and the soil pH.
Arsenic concentrations measured in ryegrass shoots ranged from 119
to 1602 μg/kg. Positive linear correlations were obtained between
As in ryegrass shoots and water extractable-As. The transfer coefficient
of As correlated well with the ratio assimilated-phosphorus/Fe-oxides.
As(III) uptake by the shoot of ryegrass was controlled by the organic
matter and Fe-oxide contents. |
2015Article de journal ER4 Auteurs : Janus, Adeline; Pelfrêne, Aurélie; Heymans, Sophie; Deboffe, Christophe; Douay, Francis; Waterlot, Christophe Elaboration, characteristics and advantages of biochars for the management of contaminated soils with a specific overview on Miscanthus biochars Journal of Environmental Management, vol. 162, p. 275-289, 2015, (ACLS). @article{Janus2015,
title = {Elaboration, characteristics and advantages of biochars for the management of contaminated soils with a specific overview on Miscanthus biochars},
author = {Adeline Janus and Aurélie Pelfrêne and Sophie Heymans and Christophe Deboffe and Francis Douay and Christophe Waterlot},
year = {2015},
date = {2015-01-01},
journal = {Journal of Environmental Management},
volume = {162},
pages = {275-289},
abstract = {Biochars are products that are rich in carbon obtained by pyrolysis processes that consist in introducing a biomass (such as wood or manure) in a closed container and heating it with little or no available air. this paper reports the impacts of pyrolysis parameters on biochar characteristics. a preliminary examination of the scientific literature revealed that the type of feedstock, the temperature, the heating rate and the gas flow were the major parameters influencing the biochar characteristics. this review highlights the multitude of biochars that can be made and shows the importance of characterizing them before their use in soils. then we assess how the input of biochars in soils can affect soil parameters. a review of the literature showed modifications on: i) the physical properties of soils (i.e. the modification in soil structure and water retention), ii) the chemical properties of soils (i.e. the modification of ph, cation exchange capacity, nutrient availability, the organic matter content) and iii) the biological properties (i.e. the changes in microbial and faunal communities). all these modifications can lead to an increase in crop productivity, which confirms the value of biochars as a soil amendment. moreover, biochars can also provide an advantage for soil remediation. indeed, biochars efficiently reduce the bioavailability of organic and inorganic pollutants. in addition, this review focuses on a specific plant that can be used to produce biochars: miscanthus, a non-wood rhizomatous c4 perennial grass. miscanthus presents advantages for biochar production due to: i) its lignocellulosic content, ii) its silicon content, which can mitigate environmental stresses (notably for plants grown on contaminated sites) and iii) the greater surface area of the miscanthus biochars compared to the biochars produced with other feedstock},
note = {ACLS},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Biochars are products that are rich in carbon obtained by pyrolysis processes that consist in introducing a biomass (such as wood or manure) in a closed container and heating it with little or no available air. this paper reports the impacts of pyrolysis parameters on biochar characteristics. a preliminary examination of the scientific literature revealed that the type of feedstock, the temperature, the heating rate and the gas flow were the major parameters influencing the biochar characteristics. this review highlights the multitude of biochars that can be made and shows the importance of characterizing them before their use in soils. then we assess how the input of biochars in soils can affect soil parameters. a review of the literature showed modifications on: i) the physical properties of soils (i.e. the modification in soil structure and water retention), ii) the chemical properties of soils (i.e. the modification of ph, cation exchange capacity, nutrient availability, the organic matter content) and iii) the biological properties (i.e. the changes in microbial and faunal communities). all these modifications can lead to an increase in crop productivity, which confirms the value of biochars as a soil amendment. moreover, biochars can also provide an advantage for soil remediation. indeed, biochars efficiently reduce the bioavailability of organic and inorganic pollutants. in addition, this review focuses on a specific plant that can be used to produce biochars: miscanthus, a non-wood rhizomatous c4 perennial grass. miscanthus presents advantages for biochar production due to: i) its lignocellulosic content, ii) its silicon content, which can mitigate environmental stresses (notably for plants grown on contaminated sites) and iii) the greater surface area of the miscanthus biochars compared to the biochars produced with other feedstock |
2015Conférence ER4 Auteurs : Janus, Adeline; Pelfrêne, Aurélie; Heymans, Sophie; Deboffe, Christophe; Douay, Francis; Waterlot, Christophe Interest of Miscanthus biochars to decrease the bioavailability of metals and PAHs in aqueous solutions Joint International Biochar Symposium “Understanding Biochar Mechanisms for Pratical Implentation”, 28–30 September 2015, Geisenheim (Allemagne), 2015, (AFF). @conference{Janus2015a,
title = {Interest of Miscanthus biochars to decrease the bioavailability of metals and PAHs in aqueous solutions},
author = {Adeline Janus and Aurélie Pelfrêne and Sophie Heymans and Christophe Deboffe and Francis Douay and Christophe Waterlot},
year = {2015},
date = {2015-01-01},
booktitle = {Joint International Biochar Symposium “Understanding Biochar Mechanisms for Pratical Implentation”, 28–30 September 2015, Geisenheim (Allemagne)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2015Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Détriché, Sébastien; Douay, Francis Combining spatial distribution with oral bioaccessibility of metals in smelter-impacted soils: implications for human health risk assessment Environmental Geochemistry and Health, vol. 37, no. 1, p. 49-62, 2015, (ACL). @article{Pelfrene2015,
title = {Combining spatial distribution with oral bioaccessibility of metals in smelter-impacted soils: implications for human health risk assessment},
author = {Aurélie Pelfrêne and Sébastien Détriché and Francis Douay},
year = {2015},
date = {2015-01-01},
journal = {Environmental Geochemistry and Health},
volume = {37},
number = {1},
pages = {49-62},
abstract = {Geostatistical analysis and gis-based spatial mapping have been widely used for risk assessment of environmental pollution. the objectives of this study were to: (1) investigate the spatial variability of pseudototal concentrations of cd, pb, and zn; (2) estimate the degree of contamination on the basis of pollution indexes; and (3) combine geostatistical analysis with oral bioaccessibility to better assess the population’s exposure to metals in smelter-impacted soils. implications for human health risks were assessed by considering soil as a contaminant source, a release mechanism of contaminated soil to the hands, ingestion as an exposure route, and metal bioaccessibility. the bioaccessibility data in the gastric (g) and gastrointestinal (gi) phases were integrated into the standard hazard quotient-based risk assessment method. using pollution indices showed that the entire area studied was highly polluted in terms of soil metal concentrations. however, the spatial pattern of health risk levels did not coincide with the spatial distribution of the degree of soil contamination. introducing the bioaccessible fraction of metals from soils into the exposure calculations resulted in a substantial decrease in calculated risk (hi, hazard index) and provided a more realistic estimate of exposure to the three metals. for the highly exposed population, 46 % of the soils studied provided an hi-g > 1.0 and 15 % provided an hi-gi > 1.0, suggesting probable adverse health effects in children. the present study highlights the importance of conducting studies taking into account metal bioaccessible values in risk assessment},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Geostatistical analysis and gis-based spatial mapping have been widely used for risk assessment of environmental pollution. the objectives of this study were to: (1) investigate the spatial variability of pseudototal concentrations of cd, pb, and zn; (2) estimate the degree of contamination on the basis of pollution indexes; and (3) combine geostatistical analysis with oral bioaccessibility to better assess the population’s exposure to metals in smelter-impacted soils. implications for human health risks were assessed by considering soil as a contaminant source, a release mechanism of contaminated soil to the hands, ingestion as an exposure route, and metal bioaccessibility. the bioaccessibility data in the gastric (g) and gastrointestinal (gi) phases were integrated into the standard hazard quotient-based risk assessment method. using pollution indices showed that the entire area studied was highly polluted in terms of soil metal concentrations. however, the spatial pattern of health risk levels did not coincide with the spatial distribution of the degree of soil contamination. introducing the bioaccessible fraction of metals from soils into the exposure calculations resulted in a substantial decrease in calculated risk (hi, hazard index) and provided a more realistic estimate of exposure to the three metals. for the highly exposed population, 46 % of the soils studied provided an hi-g > 1.0 and 15 % provided an hi-gi > 1.0, suggesting probable adverse health effects in children. the present study highlights the importance of conducting studies taking into account metal bioaccessible values in risk assessment |
2015Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Kleckerová, Andrea; Pourrut, Bertrand; Nsanganwimana, Florien; Douay, Francis; Waterlot, Christophe Effect of miscanthus cultivation on metal fractionation and human bioaccessibility in metal-contaminated soils: Comparison between greenhouse and field experiments Environmental Science and Pollution Research, vol. 22, p. 3043–3054, 2015, (ACL). @article{Pelfrene2015a,
title = {Effect of miscanthus cultivation on metal fractionation and human bioaccessibility in metal-contaminated soils: Comparison between greenhouse and field experiments},
author = {Aurélie Pelfrêne and Andrea Kleckerová and Bertrand Pourrut and Florien Nsanganwimana and Francis Douay and Christophe Waterlot},
year = {2015},
date = {2015-01-01},
journal = {Environmental Science and Pollution Research},
volume = {22},
pages = {3043–3054},
abstract = {The in situ stabilization of metals in soils using plants with great biomass value is a promising, cost-effective, and ecologically friendly alternative to manage metal-polluted sites. the goal of phytostabilization is to reduce the bioavailable concentrations of metals in polluted soil and thus reduce the risk to the environment and human health. in this context, this study aimed at evaluating miscanthus × giganteus efficiency in phytostabilizing metals on three contaminated agricultural sites after short-term exposure under greenhouse conditions and after long-term exposure under field conditions. particular attention was paid to the influence of miscanthus cultivation on (i) cd, pb, and zn fractionation using sequential extractions and (ii) metal bioaccessibility using an in vitro gastrointestinal digestion test. data gave evidence of (i) different behaviors between the greenhouse and the field; (ii) metal redistribution in soils induced by miscanthus culture, more specifically under field conditions; (iii) higher environmental availability for cd than for pb and zn was found in both conditions; and (iv) overall, a higher bioaccessible fraction for pb (about 80 %) and cd (65–77 %) than for zn (36– 52 %) was recorded in the gastric phase, with a sharp decrease in the intestinal phase (18–35 % for cd, 5–30 % for pb, and 36–52 % for zn). compared to soils without culture, the results showed that phytostabilization using miscanthus culture provided evidence for substantial effects on oral bioaccessibility of cd, pb, and zn.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The in situ stabilization of metals in soils using plants with great biomass value is a promising, cost-effective, and ecologically friendly alternative to manage metal-polluted sites. the goal of phytostabilization is to reduce the bioavailable concentrations of metals in polluted soil and thus reduce the risk to the environment and human health. in this context, this study aimed at evaluating miscanthus × giganteus efficiency in phytostabilizing metals on three contaminated agricultural sites after short-term exposure under greenhouse conditions and after long-term exposure under field conditions. particular attention was paid to the influence of miscanthus cultivation on (i) cd, pb, and zn fractionation using sequential extractions and (ii) metal bioaccessibility using an in vitro gastrointestinal digestion test. data gave evidence of (i) different behaviors between the greenhouse and the field; (ii) metal redistribution in soils induced by miscanthus culture, more specifically under field conditions; (iii) higher environmental availability for cd than for pb and zn was found in both conditions; and (iv) overall, a higher bioaccessible fraction for pb (about 80 %) and cd (65–77 %) than for zn (36– 52 %) was recorded in the gastric phase, with a sharp decrease in the intestinal phase (18–35 % for cd, 5–30 % for pb, and 36–52 % for zn). compared to soils without culture, the results showed that phytostabilization using miscanthus culture provided evidence for substantial effects on oral bioaccessibility of cd, pb, and zn. |
2015Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Guérin, Annie; Proix, Nicolas; Richard, Antoine; Douay, Francis Use of an in vitro digestion method to estimate human bioaccessibility of Cd in vegetables grown in smelter-impacted soils: the influence of cooking Environmental Geochemistry and Health, vol. 37, p. 767-778, 2015, (ACL). @article{Pelfrene2015b,
title = {Use of an in vitro digestion method to estimate human bioaccessibility of Cd in vegetables grown in smelter-impacted soils: the influence of cooking},
author = {Aurélie Pelfrêne and Christophe Waterlot and Annie Guérin and Nicolas Proix and Antoine Richard and Francis Douay},
year = {2015},
date = {2015-01-01},
journal = {Environmental Geochemistry and Health},
volume = {37},
pages = {767-778},
abstract = {Metal contamination of urban soils and homegrown vegetables has caused major concern. some studies showed that cadmium (cd) was among the most significant hazards in kitchen garden soils and prolonged exposure to this metal could cause deleterious health effects in humans. in general, most risk assessment procedures are based on total concentrations of metals in vegetables. the present study assesses human bioaccessibility of cd in vegetables cultivated in smelter-impacted kitchen garden soils. seven vegetables (radish, lettuce, french bean, carrot, leek, tomato, and potato) were considered. using the ubm protocol (unified barge bioaccessibility method), the bioaccessibility of cd was measured in raw/cooked vegetables. a considerable amount of cd was mobilized from raw vegetables during the digestion process (on average 85 % in the gastric phase and 69 % in the gastrointestinal phase), which could be attributed to a high uptake of cd during the growth of the vegetables. most cd is accumulated in the vacuoles of plant cells, except what is absorbed by the cell wall, allowing cd to be released from plant tissues under moderate conditions. cooking by the steaming process generally increased the bioaccessibility of cd in french bean, carrot, and leek. for potato, few or no significant differences of cd bioaccessibility were observed after the steaming process, while the frying process strongly decreased bioaccessibility in both phases. the estimation of metal bioaccessibility in vegetables is helpful for human health risk assessment.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Metal contamination of urban soils and homegrown vegetables has caused major concern. some studies showed that cadmium (cd) was among the most significant hazards in kitchen garden soils and prolonged exposure to this metal could cause deleterious health effects in humans. in general, most risk assessment procedures are based on total concentrations of metals in vegetables. the present study assesses human bioaccessibility of cd in vegetables cultivated in smelter-impacted kitchen garden soils. seven vegetables (radish, lettuce, french bean, carrot, leek, tomato, and potato) were considered. using the ubm protocol (unified barge bioaccessibility method), the bioaccessibility of cd was measured in raw/cooked vegetables. a considerable amount of cd was mobilized from raw vegetables during the digestion process (on average 85 % in the gastric phase and 69 % in the gastrointestinal phase), which could be attributed to a high uptake of cd during the growth of the vegetables. most cd is accumulated in the vacuoles of plant cells, except what is absorbed by the cell wall, allowing cd to be released from plant tissues under moderate conditions. cooking by the steaming process generally increased the bioaccessibility of cd in french bean, carrot, and leek. for potato, few or no significant differences of cd bioaccessibility were observed after the steaming process, while the frying process strongly decreased bioaccessibility in both phases. the estimation of metal bioaccessibility in vegetables is helpful for human health risk assessment. |
2015Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Proix, Nicolas; Guérin, Annie; Richard, Antoine; Douay, Francis Evaluation de l'exposition des populations en lien avec la consommation de légumes autoproduits aux alentours d’une ancienne fonderie de plomb: Contribution à l’évaluation des risques sanitaires (BioacLeg) Journée Santé Environnement Société, Région Nord – Pas de Calais, 23 juin 2015, Lille, 2015, (COM). @conference{Pelfrene2015c,
title = {Evaluation de l'exposition des populations en lien avec la consommation de légumes autoproduits aux alentours d’une ancienne fonderie de plomb: Contribution à l’évaluation des risques sanitaires (BioacLeg)},
author = {Aurélie Pelfrêne and Christophe Waterlot and Nicolas Proix and Annie Guérin and Antoine Richard and Francis Douay},
year = {2015},
date = {2015-01-01},
booktitle = {Journée Santé Environnement Société, Région Nord – Pas de Calais, 23 juin 2015, Lille},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2015Conférence ER4 Auteurs : Pinte, Emilie; Pelfrêne, Aurélie; Détriché, Sébastien; Cheppe, Gaetan; Consales, J -N; Schwartz, Christophe; Douay, Francis Metallic pollutants in Lille city (Northern France) community garden soils: Contamination degree and bioavailability 12th Urban Environment Symposium, 1-3 June 2015, Oslo (Norvége), 2015, (AFF). @conference{Pinte2015,
title = {Metallic pollutants in Lille city (Northern France) community garden soils: Contamination degree and bioavailability},
author = {Emilie Pinte and Aurélie Pelfrêne and Sébastien Détriché and Gaetan Cheppe and J -N Consales and Christophe Schwartz and Francis Douay},
year = {2015},
date = {2015-01-01},
booktitle = {12th Urban Environment Symposium, 1-3 June 2015, Oslo (Norvége)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2014Conférence ER4 Auteurs : Détriché, Sébastien; Pelfrêne, Aurélie; Douay, Francis Combining spatial distribution with oral bioaccessibility of metals in smelter-impacted soils: Implications for human health risk assessment 30th International SEGH conference, 30 June – 4 July 2014, Newcastle upon Tyne (UK), 2014, (AFF). @conference{Detriche2014,
title = {Combining spatial distribution with oral bioaccessibility of metals in smelter-impacted soils: Implications for human health risk assessment},
author = {Sébastien Détriché and Aurélie Pelfrêne and Francis Douay},
year = {2014},
date = {2014-01-01},
booktitle = {30th International SEGH conference, 30 June – 4 July 2014, Newcastle upon Tyne (UK)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2014Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Douay, Francis Evaluation de l'impact de deux filières de phytomanagement sur la bioaccessibilité orale de Cd et Pb pour l’homme 3èmes Rencontres nationales de la Recherche sur les sites et sols pollués, ADEME, 18-19 novembre 2014, Paris, 2014, (ACTN). @conference{Pelfrene2014,
title = {Evaluation de l'impact de deux filières de phytomanagement sur la bioaccessibilité orale de Cd et Pb pour l’homme},
author = {Aurélie Pelfrêne and Christophe Waterlot and Francis Douay},
year = {2014},
date = {2014-01-01},
booktitle = {3èmes Rencontres nationales de la Recherche sur les sites et sols pollués, ADEME, 18-19 novembre 2014, Paris},
abstract = {Dans une démarche de gestion des sites et sols pollués, la requalification des sols par le phytomanagement permet de limiter les risques environnementaux et de maintenir une activité économique. le mode de gestion proposé dans la présente étude implique deux filières de phytomanagement à l’aide (1) d’une graminée vivace (miscanthus x giganteus) et (2) d’essences arborées avec et sans ajout d’amendements minéraux. en vue de mieux évaluer les dangers sanitaires en lien avec l’ingestion de particules de sols contaminés, la bioaccessibilité orale de cd et pb a été déterminée sur des sols collectés avant et après leur requalification. l’intérêt d’introduire la notion de bioaccessibilité au sein de l’évaluation de risques, au lieu des concentrations totales en métaux, est d’obtenir une valeur d’exposition plus pertinente. globalement, les modes de gestion proposés ne permettent pas de diminuer la bioaccessibilité orale de cd et pb dans la phase gastrique. dans la phase gastro-intestinale, qui d’un point de vue physiologique correspond à la phase la plus pertinente, la bioaccessibilité de cd n’est pas diminuée. en revanche, le phytomanagement (principalement avec le miscanthus) permet la réduction de la bioaccessibilité orale pour l’homme de pb.},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Dans une démarche de gestion des sites et sols pollués, la requalification des sols par le phytomanagement permet de limiter les risques environnementaux et de maintenir une activité économique. le mode de gestion proposé dans la présente étude implique deux filières de phytomanagement à l’aide (1) d’une graminée vivace (miscanthus x giganteus) et (2) d’essences arborées avec et sans ajout d’amendements minéraux. en vue de mieux évaluer les dangers sanitaires en lien avec l’ingestion de particules de sols contaminés, la bioaccessibilité orale de cd et pb a été déterminée sur des sols collectés avant et après leur requalification. l’intérêt d’introduire la notion de bioaccessibilité au sein de l’évaluation de risques, au lieu des concentrations totales en métaux, est d’obtenir une valeur d’exposition plus pertinente. globalement, les modes de gestion proposés ne permettent pas de diminuer la bioaccessibilité orale de cd et pb dans la phase gastrique. dans la phase gastro-intestinale, qui d’un point de vue physiologique correspond à la phase la plus pertinente, la bioaccessibilité de cd n’est pas diminuée. en revanche, le phytomanagement (principalement avec le miscanthus) permet la réduction de la bioaccessibilité orale pour l’homme de pb. |
2014Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Proix, Nicolas; Guérin, Annie; Richard, Antoine; Douay, Francis Use of an in vitro digestion method to estimate cadmium bioaccessibility in vegetables grown in smelter-impacted soils: influence of cooking 30th International SEGH conference, 30 June – 4 July 2014, Newcastle upon Tyne (UK), 2014, (ACTI). @conference{Pelfrene2014a,
title = {Use of an in vitro digestion method to estimate cadmium bioaccessibility in vegetables grown in smelter-impacted soils: influence of cooking},
author = {Aurélie Pelfrêne and Christophe Waterlot and Nicolas Proix and Annie Guérin and Antoine Richard and Francis Douay},
year = {2014},
date = {2014-01-01},
booktitle = {30th International SEGH conference, 30 June – 4 July 2014, Newcastle upon Tyne (UK)},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2014Conférence ER4 Auteurs : Waterlot, Christophe; Pelfrêne, Aurélie; Nsanganwimana, Florien; Pourrut, Bertrand; Douay, Francis Évaluation des effets de Miscanthus × giganteus sur la distribution des ETM d’une parcelle agricole 3èmes Rencontres nationales de la Recherche sur les sites et sols pollués, ADEME, 18-19 novembre 2014, Paris, 2014, (ACTN). @conference{Waterlot2014b,
title = {Évaluation des effets de Miscanthus × giganteus sur la distribution des ETM d’une parcelle agricole},
author = {Christophe Waterlot and Aurélie Pelfrêne and Florien Nsanganwimana and Bertrand Pourrut and Francis Douay},
year = {2014},
date = {2014-01-01},
booktitle = {3èmes Rencontres nationales de la Recherche sur les sites et sols pollués, ADEME, 18-19 novembre 2014, Paris},
abstract = {Le phytomanagement peut être un mode de gestion de sols contaminés en visant à limiter les dangers environnementaux et sanitaires mais aussi, à requalifier les milieux dégradés en restaurant leurs fonctions. l’un des modes de gestion proposé dans le cadre du programme phytener repose sur l’utilisation, à des fins de production d’une biomasse, d’une graminée vivace et pérenne, miscanthus × giganteus. dans le but d’étudier les effets du couvert végétal sur la mobilité des métaux, des extractions séquentielles ont été réalisées avant et après son installation. bien que la mobilité de cd, pb et zn ait significativement diminué la première année qui a suivi la mise en place du dispositif expérimental, il s’avère que l’extractabilité de cd et pb reste globalement inchangée à l’issue de trois années d’expérimentation. en revanche, miscanthus × giganteus induit une augmentation de la mobilité de zn.},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
Le phytomanagement peut être un mode de gestion de sols contaminés en visant à limiter les dangers environnementaux et sanitaires mais aussi, à requalifier les milieux dégradés en restaurant leurs fonctions. l’un des modes de gestion proposé dans le cadre du programme phytener repose sur l’utilisation, à des fins de production d’une biomasse, d’une graminée vivace et pérenne, miscanthus × giganteus. dans le but d’étudier les effets du couvert végétal sur la mobilité des métaux, des extractions séquentielles ont été réalisées avant et après son installation. bien que la mobilité de cd, pb et zn ait significativement diminué la première année qui a suivi la mise en place du dispositif expérimental, il s’avère que l’extractabilité de cd et pb reste globalement inchangée à l’issue de trois années d’expérimentation. en revanche, miscanthus × giganteus induit une augmentation de la mobilité de zn. |
2013Article de journal ER4 Auteurs : Douay, Francis; Pelfrêne, Aurélie; Planque, Julie; Fourrier, Hervé; Richard, Antoine; Roussel, Hélène; Girondelot, Bertrand Assessment of potential health risk for inhabitants living near a former lead smelter. Part 1: metal concentrations in soils, agricultural crops, and homegrown vegetables Environmental Monitoring and Assessment, vol. 185, no. 5, p. 3665-3680, 2013, (ACL). @article{Douay2013c,
title = {Assessment of potential health risk for inhabitants living near a former lead smelter. Part 1: metal concentrations in soils, agricultural crops, and homegrown vegetables},
author = {Francis Douay and Aurélie Pelfrêne and Julie Planque and Hervé Fourrier and Antoine Richard and Hélène Roussel and Bertrand Girondelot},
year = {2013},
date = {2013-01-01},
journal = {Environmental Monitoring and Assessment},
volume = {185},
number = {5},
pages = {3665-3680},
abstract = {Soil contamination by metals engenders important environmental and health problems in northern france where a smelter (metaleurop nord) was in activity for more than a century. this study aims to look at the long-term effects of the smelter after its closedown by combining data on the degree of soil contamination and the quality of the crops grown (agricultural crops and homegrown vegetables) in these soils for a better assessment of the local population's exposure to cd, pb, and zn. seven years after the metaleurop nord closedown, (1) the agricultural and urban topsoils were strongly contaminated by cd, pb, and zn; (2) the kitchen garden topsoils were even more polluted than the agricultural soils, with great variability in metal concentrations within the gardens studied; (3) a high proportion of the agricultural crops for foodstuffs did not conform with the european legislation; (4) for feedstuffs, most samples did not exceed the cd and pb legislation limits, indicating that feedstuffs may be an opportunity for most agricultural produce; and (5) a high proportion of the vegetables produced in the kitchen gardens did not conform with the european foodstuff legislation. the high contamination level of the soils studied continues to be a risk for the environment and the population's health. a further investigation (part 2) assesses the associated potential health risk for local inhabitants through consumption of homegrown vegetables and ingestion of soil particles by estimating the site-specific human health assessment criteria for cd and pb.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Soil contamination by metals engenders important environmental and health problems in northern france where a smelter (metaleurop nord) was in activity for more than a century. this study aims to look at the long-term effects of the smelter after its closedown by combining data on the degree of soil contamination and the quality of the crops grown (agricultural crops and homegrown vegetables) in these soils for a better assessment of the local population's exposure to cd, pb, and zn. seven years after the metaleurop nord closedown, (1) the agricultural and urban topsoils were strongly contaminated by cd, pb, and zn; (2) the kitchen garden topsoils were even more polluted than the agricultural soils, with great variability in metal concentrations within the gardens studied; (3) a high proportion of the agricultural crops for foodstuffs did not conform with the european legislation; (4) for feedstuffs, most samples did not exceed the cd and pb legislation limits, indicating that feedstuffs may be an opportunity for most agricultural produce; and (5) a high proportion of the vegetables produced in the kitchen gardens did not conform with the european foodstuff legislation. the high contamination level of the soils studied continues to be a risk for the environment and the population's health. a further investigation (part 2) assesses the associated potential health risk for local inhabitants through consumption of homegrown vegetables and ingestion of soil particles by estimating the site-specific human health assessment criteria for cd and pb. |
2013Article de journal ER4 Auteurs : Goulas, Anaïs; Pelfrêne, Aurélie; Douay, Francis; Waterlot, Christophe Optimisation des conditions d’analyses des HAP de la liste US EPA en UFLC munie d’un détecteur à barrettes de diodes et d’une colonne Kinetex®- C18 à particules Core-Shell Spectra Analyse, vol. 295, p. 48-53, 2013, (ACLN). @article{Goulas2013,
title = {Optimisation des conditions d’analyses des HAP de la liste US EPA en UFLC munie d’un détecteur à barrettes de diodes et d’une colonne Kinetex®- C18 à particules Core-Shell},
author = {Anaïs Goulas and Aurélie Pelfrêne and Francis Douay and Christophe Waterlot},
year = {2013},
date = {2013-01-01},
journal = {Spectra Analyse},
volume = {295},
pages = {48-53},
abstract = {Les hydrocarbures aromatiques polycycliques (hap) sont présents dans les compartiments environnementaux (sols, sédiments, particules en suspension dans l’eau et dans l’air) et dans la chaîne alimentaire. connus pour leurs effets mutagènes, génotoxiques et cancérogènes, les hap font l’objet de nombreuses études portant sur la caractérisation des dangers qu’ils représentent, soit individuellement, soit en mélange. quelles que soient les matrices contaminées, la quantification à l’état de traces et d’ultratraces des hap nécessite des techniques analytiques permettant une séparation des composés avec une sensibilité optimale. les caractéristiques analytiques d’un système associant une chaîne uflc (ultra fast liquid chromatography), un détecteur à barrettes de diodes et une colonne équipée des particules core- shell ont donc été déterminées pour l’analyse des 16 hap classés prioritaires par l’agence de protection de l’environnement américaine (us epa). leur séparation a été réalisée en 21,5 minutes et un bon compromis entre ce temps et la résolution des pics a permis l’intégration automatisée de l’ensemble des hap au point d’obtenir des limites de détection faibles (comprises entre 0,88 et 9,16 μg.l-1) au regard du détecteur utilisé.},
note = {ACLN},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Les hydrocarbures aromatiques polycycliques (hap) sont présents dans les compartiments environnementaux (sols, sédiments, particules en suspension dans l’eau et dans l’air) et dans la chaîne alimentaire. connus pour leurs effets mutagènes, génotoxiques et cancérogènes, les hap font l’objet de nombreuses études portant sur la caractérisation des dangers qu’ils représentent, soit individuellement, soit en mélange. quelles que soient les matrices contaminées, la quantification à l’état de traces et d’ultratraces des hap nécessite des techniques analytiques permettant une séparation des composés avec une sensibilité optimale. les caractéristiques analytiques d’un système associant une chaîne uflc (ultra fast liquid chromatography), un détecteur à barrettes de diodes et une colonne équipée des particules core- shell ont donc été déterminées pour l’analyse des 16 hap classés prioritaires par l’agence de protection de l’environnement américaine (us epa). leur séparation a été réalisée en 21,5 minutes et un bon compromis entre ce temps et la résolution des pics a permis l’intégration automatisée de l’ensemble des hap au point d’obtenir des limites de détection faibles (comprises entre 0,88 et 9,16 μg.l-1) au regard du détecteur utilisé. |
2013Conférence ER4 Auteurs : Goulas, Anaïs; Pelfrêne, Aurélie; Douay, Francis; Waterlot, Christophe Optimisation des conditions d’analyses des HAP en UFLC équipée d’un détecteur à barrettes de diodes et d’une colonne Kinetex®- C18 Université Catholique de Lille - Journée de la R&D en développement durable et responsabilité sociétale, 31 mai 2013, Lille, 2013, (COM). @conference{Goulas2013a,
title = {Optimisation des conditions d’analyses des HAP en UFLC équipée d’un détecteur à barrettes de diodes et d’une colonne Kinetex®- C18},
author = {Anaïs Goulas and Aurélie Pelfrêne and Francis Douay and Christophe Waterlot},
year = {2013},
date = {2013-01-01},
booktitle = {Université Catholique de Lille - Journée de la R&D en développement durable et responsabilité sociétale, 31 mai 2013, Lille},
note = {COM},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2013Conférence ER4 Auteurs : Pelfrêne, Aurélie; Cave, Mark; Wragg, Joanna; Mounteney, I; Burton, A Assessing bioaccessibility of metals and metalloids from reference materials for the inhalation exposure route 7th International Workshop on Chemical Bioavailability in the Terrestrial Environment, 3-6 November 2013, Nottingham (UK), 2013, (AFF). @conference{Pelfrene2013b,
title = {Assessing bioaccessibility of metals and metalloids from reference materials for the inhalation exposure route},
author = {Aurélie Pelfrêne and Mark Cave and Joanna Wragg and I Mounteney and A Burton},
year = {2013},
date = {2013-01-01},
booktitle = {7th International Workshop on Chemical Bioavailability in the Terrestrial Environment, 3-6 November 2013, Nottingham (UK)},
note = {AFF},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2013Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Douay, Francis; Richard, Antoine; Roussel, Hélène; Girondelot, Bertrand Assessment of potential health risk for inhabitants living near a former lead smelter. Part 2: Site-specific human health risk assessment of Cd and Pb contamination in kitchen gardens Environmental Monitoring and Assessment, vol. 185, no. 5, p. 2999-3012, 2013, (ACL). @article{Pelfrene2013b,
title = {Assessment of potential health risk for inhabitants living near a former lead smelter. Part 2: Site-specific human health risk assessment of Cd and Pb contamination in kitchen gardens},
author = {Aurélie Pelfrêne and Francis Douay and Antoine Richard and Hélène Roussel and Bertrand Girondelot},
year = {2013},
date = {2013-01-01},
journal = {Environmental Monitoring and Assessment},
volume = {185},
number = {5},
pages = {2999-3012},
abstract = {Metal contamination of urban soils and homegrown products has caused major concern. in part 1, we investigated the long-term effects of a former smelter on the degree of kitchen garden-soil contamination and the quality of the homegrown vegetables from these gardens. the results showed that the soils retained a high level of contamination and that a large proportion of the vegetables produced did not comply with the legislation on the levels of metals allowed for human consumption. the present study aims to assess the associated potential health risk to local inhabitants through consumption of homegrown vegetables and ingestion of soil particles using a land use-based approach. for lead (pb), the standard hazard quotient (hq)-based risk assessment method was used to determine the hq. for cadmium (cd), the approach consisted of calculating the hqs and then deriving site-specific assessment criteria (ssac) using the sniffer method. the results suggested that the exposure pathways considered should not engender any form of deleterious health effects for adults. for children, pb was the main concern and induced a relatively high health risk through soil particle ingestion, and most total soil cd concentrations exceeded the derived ssac, in particular, through consumption of vegetables. the metal bioaccessibility in soils was incorporated into the methods to establish more realistic risk assessment measures. this study proposes an approach to integrate different human health risk assessment methods. further investigations should complete the assessment to improve risk determination, e.g., the determination of metal bioaccessibility in vegetables.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Metal contamination of urban soils and homegrown products has caused major concern. in part 1, we investigated the long-term effects of a former smelter on the degree of kitchen garden-soil contamination and the quality of the homegrown vegetables from these gardens. the results showed that the soils retained a high level of contamination and that a large proportion of the vegetables produced did not comply with the legislation on the levels of metals allowed for human consumption. the present study aims to assess the associated potential health risk to local inhabitants through consumption of homegrown vegetables and ingestion of soil particles using a land use-based approach. for lead (pb), the standard hazard quotient (hq)-based risk assessment method was used to determine the hq. for cadmium (cd), the approach consisted of calculating the hqs and then deriving site-specific assessment criteria (ssac) using the sniffer method. the results suggested that the exposure pathways considered should not engender any form of deleterious health effects for adults. for children, pb was the main concern and induced a relatively high health risk through soil particle ingestion, and most total soil cd concentrations exceeded the derived ssac, in particular, through consumption of vegetables. the metal bioaccessibility in soils was incorporated into the methods to establish more realistic risk assessment measures. this study proposes an approach to integrate different human health risk assessment methods. further investigations should complete the assessment to improve risk determination, e.g., the determination of metal bioaccessibility in vegetables. |
2013Conférence ER4 Auteurs : Pelfrêne, Aurélie; Grard, Olivier; Douay, Francis Réduction de l’exposition des populations aux métaux en lien avec le jardinage dans un contexte fortement contaminé de l’ancien bassin minier Conférence Régionale Santé Environnement, 7 juin 2013, Lille, 2013, (OV). @conference{Pelfrene2013c,
title = {Réduction de l’exposition des populations aux métaux en lien avec le jardinage dans un contexte fortement contaminé de l’ancien bassin minier},
author = {Aurélie Pelfrêne and Olivier Grard and Francis Douay},
year = {2013},
date = {2013-01-01},
booktitle = {Conférence Régionale Santé Environnement, 7 juin 2013, Lille},
note = {OV},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2013Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Douay, Francis Influence of land use on human bioaccessibility of metals in smelter-impacted soils Environmental Pollution, vol. 178, p. 80-88, 2013, (ACL). @article{Pelfrene2013a,
title = {Influence of land use on human bioaccessibility of metals in smelter-impacted soils},
author = {Aurélie Pelfrêne and Christophe Waterlot and Francis Douay},
year = {2013},
date = {2013-01-01},
journal = {Environmental Pollution},
volume = {178},
pages = {80-88},
abstract = {An investigation was undertaken to evaluate the empirical model developed by pelfrene et al. (2012), predicting the human bioaccessibility of cd and pb in smelter-contaminated agricultural topsoils, by including other soil uses: 50 urban and 65 woody habitat topsoils collected in the same area. the results showed that land use significantly affected the pseudototal metal concentrations and their oral bioaccessibility. however, whatever the soil's physicochemical parameters and degree of contamination, the 'agricultural' model can be used to simulate metal gastric bioaccessibility in urban and woody habitat soils. to simulate gastrointestinal bioaccessibility, this model can be used directly if the pseudototal metal concentrations are on the same order of magnitude as those usually recorded in the agricultural soils studied or after the use of a correction factor if these concentrations are greater. these results showed that the oral bioaccessibility predictions could be applicable for further environmental risk evaluation. (c) 2013 elsevier ltd. all rights reserved.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
An investigation was undertaken to evaluate the empirical model developed by pelfrene et al. (2012), predicting the human bioaccessibility of cd and pb in smelter-contaminated agricultural topsoils, by including other soil uses: 50 urban and 65 woody habitat topsoils collected in the same area. the results showed that land use significantly affected the pseudototal metal concentrations and their oral bioaccessibility. however, whatever the soil's physicochemical parameters and degree of contamination, the 'agricultural' model can be used to simulate metal gastric bioaccessibility in urban and woody habitat soils. to simulate gastrointestinal bioaccessibility, this model can be used directly if the pseudototal metal concentrations are on the same order of magnitude as those usually recorded in the agricultural soils studied or after the use of a correction factor if these concentrations are greater. these results showed that the oral bioaccessibility predictions could be applicable for further environmental risk evaluation. (c) 2013 elsevier ltd. all rights reserved. |
2013Article de journal ER4 Auteurs : Waterlot, Christophe; Bidar, Géraldine; Pelfrêne, Aurélie; Roussel, Hélène; Fourrier, Hervé; Douay, Francis Contamination, fractionation and availability of metals in urban soils in the vicinity of former lead and zinc smelters, France Pedosphere, vol. 23, no. 2, p. 143-159, 2013, (ACL). @article{Waterlot2013,
title = {Contamination, fractionation and availability of metals in urban soils in the vicinity of former lead and zinc smelters, France},
author = {Christophe Waterlot and Géraldine Bidar and Aurélie Pelfrêne and Hélène Roussel and Hervé Fourrier and Francis Douay},
year = {2013},
date = {2013-01-01},
journal = {Pedosphere},
volume = {23},
number = {2},
pages = {143-159},
abstract = {Soil contamination by metals from anthropogenic activities (e.g., mining and smelting) is a major concern for the environment and human health. environmental availability of cadmium (cd), lead (pb), zinc (zn), copper (cu), and indium (in) in 27 urban soils located around two former pb and zn smelters in northern france were studied by analysing the chemical forms of these metals and evaluating their phytoavailability. these metals were determined using flame or electrothermal absorption atomic spectrometry (faas or etaas), depending on their concentration levels. after optimisation of the etaas method, characteristic mass of in in water and aqua regia were 9.9 and 18 pg, respectively, showing the high sensitivity of the analytical procedure. metal partitioning was conducted using a four-step sequential extraction procedure. the results showed that cd and zn were mainly in the acid-extractable and reducible forms in the urban soils studied. in contrast, pb and in were largely in the reducible fraction. however, in some samples, the amount of in extracted in the residual or exchangeable fraction was higher than that in the reducible fraction. copper was mainly found in the reducible and residual fractions. a pot experiment was conducted in a glasshouse with seven soils (six contaminated and one uncontaminated) and two plant species, ryegrass and lettuce. the results showed transfer of metals from the contaminated soils to the shoots of ryegrass and the edible part of lettuce. the metal bioconcentration factor was in the order of cd >> cu > in > zn >> pb for lettuce leaves, whereas for ryegrass shoots, three orders were found, cd > zn > cu >> in > pb, cd >= in > zn > cu >> pb, and zn > cd > cu > in > pb, depending on the physico-chemical properties of the soils, such as ph, cation exchange capacity, carbonates, and organic matter. it was established that the metal toxicity was related to the contamination levels and the physico-chemical properties, including ph, organic matter, and in a lesser extent, ca, mg, and phosphorus contents, of the soils. however, it was shown that lettuce could grow on soils having high cd and caco3 contents. cadmium was one of the most available metals while pb was always the least available in the soils studied.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Soil contamination by metals from anthropogenic activities (e.g., mining and smelting) is a major concern for the environment and human health. environmental availability of cadmium (cd), lead (pb), zinc (zn), copper (cu), and indium (in) in 27 urban soils located around two former pb and zn smelters in northern france were studied by analysing the chemical forms of these metals and evaluating their phytoavailability. these metals were determined using flame or electrothermal absorption atomic spectrometry (faas or etaas), depending on their concentration levels. after optimisation of the etaas method, characteristic mass of in in water and aqua regia were 9.9 and 18 pg, respectively, showing the high sensitivity of the analytical procedure. metal partitioning was conducted using a four-step sequential extraction procedure. the results showed that cd and zn were mainly in the acid-extractable and reducible forms in the urban soils studied. in contrast, pb and in were largely in the reducible fraction. however, in some samples, the amount of in extracted in the residual or exchangeable fraction was higher than that in the reducible fraction. copper was mainly found in the reducible and residual fractions. a pot experiment was conducted in a glasshouse with seven soils (six contaminated and one uncontaminated) and two plant species, ryegrass and lettuce. the results showed transfer of metals from the contaminated soils to the shoots of ryegrass and the edible part of lettuce. the metal bioconcentration factor was in the order of cd >> cu > in > zn >> pb for lettuce leaves, whereas for ryegrass shoots, three orders were found, cd > zn > cu >> in > pb, cd >= in > zn > cu >> pb, and zn > cd > cu > in > pb, depending on the physico-chemical properties of the soils, such as ph, cation exchange capacity, carbonates, and organic matter. it was established that the metal toxicity was related to the contamination levels and the physico-chemical properties, including ph, organic matter, and in a lesser extent, ca, mg, and phosphorus contents, of the soils. however, it was shown that lettuce could grow on soils having high cd and caco3 contents. cadmium was one of the most available metals while pb was always the least available in the soils studied. |
2012Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Gassama, Nathalie Competition between particles and dissolved organic matter for trace metal binding in unpolluted soil solutions: Monitoring and thermodynamic approaches Bulletin de la Société Géologique de France, vol. 183, no. 3, p. 189-201, 2012, (ACLN). @article{Pelfrene2012,
title = {Competition between particles and dissolved organic matter for trace metal binding in unpolluted soil solutions: Monitoring and thermodynamic approaches},
author = {Aurélie Pelfrêne and Nathalie Gassama},
year = {2012},
date = {2012-01-01},
journal = {Bulletin de la Société Géologique de France},
volume = {183},
number = {3},
pages = {189-201},
abstract = {In this study, monitoring and thermodynamic approaches were combined in order to identify the dominant features, which control the speciation of cd, cu, pb, and zn in solutions from unpolluted planosolic soil (north massif central, france). three sites were selected according to topography and monitored from january to may 2006 using piezometers. the sandy-loam to clay-loam organic-rich horizon (horizon a) and the gravely and concretion-rich horizon (horizon e) were chosen to assess the potential impact of type of horizon on the chemical speciation of metals in the soil solutions. binding of metals to organic ligands was studied by differential pulse anodic stripping voltammetry (dpasv) in order to acquire experimental data which could be used for the validation of speciation models. these data, together with data from the literature on properties of natural particulate matter, were used to determine the speciation of cd, cu, pb and zn with a thermodynamic code (phreeqc). the observed and predicted speciation were compared to estimate the contributions of natural dissolved organic matter and of particles to the binding of metal ions. there was a good match between observed and predicted results, validating the approach used. results show that particles (mixed iron and aluminium oxides ± clays ± organic matter) play the main role in the speciation of the trace metals in soil waters rather than complexation with dissolved organic matter. moreover, particles govern speciation to a greater extent in horizon e than in horizon a, which can be linked to hydrodynamics (reaction time between water and soil due to porosity) and chemical reactivity of the solution circulating dans cette étude, deux approches (approche terrain et approche thermodynamique) ont été couplées pour étudier la spéciation de cd, cu, pb et zn dans des eaux de subsurface circulant dans un sol non anthropisé de type planosol (nord du massif central, france). trois stations ont été sélectionnées sur un transect topographique au niveau desquelles les eaux du sol ont été prélevées de janvier à mai 2006. l’horizon éluvial appauvri et blanchi (horizon a) et l’horizon concrétionné riche en oxyhydroxydes de fer et de manganèse (horizon e) ont été choisis afin d’évaluer l’impact potentiel de la nature de l’horizon sur la spéciation chimique des métaux dans les solutions de sol. les affinités potentielles des métaux avec les ligands organiques ont été déterminées expérimentalement par voltamétrie (dpasv) ; celles avec les matières particulaires naturelles ont été prises dans la littérature. l’ensemble de ces données a été utilisé pour déterminer la spéciation de cd, cu, pb et zn par calcul thermodynamique (phreeqc). la spéciation des métaux prédite par le modèle a été comparée à celle observée sur le terrain afin d’estimer les contributions des composés organiques dissous et des particules minérales et/ou organiques vis-à-vis de cd, cu, pb et zn. les résultats obtenus (prédits/observés) sont en accord et permettent de valider l’approche proposée. les résultats montrent que les métaux traces étudiés ont des affinités beaucoup plus fortes pour les réactions de surface avec les particules mixtes (oxydes de fer et d’aluminium ± argiles ± matière organique) que pour les réactions de complexation en solution avec les composés organiques dissous. la régulation de la spéciation par la phase particulaire est plus forte dans l’horizon e que dans l’horizon a, et est principalement liée à la texture du sol (et donc la porosité) et à l’hydrodynamique du système},
note = {ACLN},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
In this study, monitoring and thermodynamic approaches were combined in order to identify the dominant features, which control the speciation of cd, cu, pb, and zn in solutions from unpolluted planosolic soil (north massif central, france). three sites were selected according to topography and monitored from january to may 2006 using piezometers. the sandy-loam to clay-loam organic-rich horizon (horizon a) and the gravely and concretion-rich horizon (horizon e) were chosen to assess the potential impact of type of horizon on the chemical speciation of metals in the soil solutions. binding of metals to organic ligands was studied by differential pulse anodic stripping voltammetry (dpasv) in order to acquire experimental data which could be used for the validation of speciation models. these data, together with data from the literature on properties of natural particulate matter, were used to determine the speciation of cd, cu, pb and zn with a thermodynamic code (phreeqc). the observed and predicted speciation were compared to estimate the contributions of natural dissolved organic matter and of particles to the binding of metal ions. there was a good match between observed and predicted results, validating the approach used. results show that particles (mixed iron and aluminium oxides ± clays ± organic matter) play the main role in the speciation of the trace metals in soil waters rather than complexation with dissolved organic matter. moreover, particles govern speciation to a greater extent in horizon e than in horizon a, which can be linked to hydrodynamics (reaction time between water and soil due to porosity) and chemical reactivity of the solution circulating dans cette étude, deux approches (approche terrain et approche thermodynamique) ont été couplées pour étudier la spéciation de cd, cu, pb et zn dans des eaux de subsurface circulant dans un sol non anthropisé de type planosol (nord du massif central, france). trois stations ont été sélectionnées sur un transect topographique au niveau desquelles les eaux du sol ont été prélevées de janvier à mai 2006. l’horizon éluvial appauvri et blanchi (horizon a) et l’horizon concrétionné riche en oxyhydroxydes de fer et de manganèse (horizon e) ont été choisis afin d’évaluer l’impact potentiel de la nature de l’horizon sur la spéciation chimique des métaux dans les solutions de sol. les affinités potentielles des métaux avec les ligands organiques ont été déterminées expérimentalement par voltamétrie (dpasv) ; celles avec les matières particulaires naturelles ont été prises dans la littérature. l’ensemble de ces données a été utilisé pour déterminer la spéciation de cd, cu, pb et zn par calcul thermodynamique (phreeqc). la spéciation des métaux prédite par le modèle a été comparée à celle observée sur le terrain afin d’estimer les contributions des composés organiques dissous et des particules minérales et/ou organiques vis-à-vis de cd, cu, pb et zn. les résultats obtenus (prédits/observés) sont en accord et permettent de valider l’approche proposée. les résultats montrent que les métaux traces étudiés ont des affinités beaucoup plus fortes pour les réactions de surface avec les particules mixtes (oxydes de fer et d’aluminium ± argiles ± matière organique) que pour les réactions de complexation en solution avec les composés organiques dissous. la régulation de la spéciation par la phase particulaire est plus forte dans l’horizon e que dans l’horizon a, et est principalement liée à la texture du sol (et donc la porosité) et à l’hydrodynamique du système |
2012Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Douay, Francis Validation and first deployment of the DGT technique in artificial human gastrointestinal fluids after ingestion of metal-containing soil particles SETAC. 20-24 May 2012, Berlin (Allemagne), 2012, (ACTI). @conference{Pelfrene2012b,
title = {Validation and first deployment of the DGT technique in artificial human gastrointestinal fluids after ingestion of metal-containing soil particles},
author = {Aurélie Pelfrêne and Christophe Waterlot and Francis Douay},
year = {2012},
date = {2012-01-01},
booktitle = {SETAC. 20-24 May 2012, Berlin (Allemagne)},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2012Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Mazzuca, Muriel; Nisse, Catherine; Bidar, Géraldine; Douay, Francis Modélisation de la bioaccessibilité orale de Cd et Pb au regard des paramètres physico-chimiques de sols agricoles fortement contaminés : Application à un site contaminé du Nord-Pas de Calais Intersol. 27-30 mars 2012, Paris, 2012, (ACTN). @conference{Pelfrene2012c,
title = {Modélisation de la bioaccessibilité orale de Cd et Pb au regard des paramètres physico-chimiques de sols agricoles fortement contaminés : Application à un site contaminé du Nord-Pas de Calais},
author = {Aurélie Pelfrêne and Christophe Waterlot and Muriel Mazzuca and Catherine Nisse and Géraldine Bidar and Francis Douay},
year = {2012},
date = {2012-01-01},
booktitle = {Intersol. 27-30 mars 2012, Paris},
note = {ACTN},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2012Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Mazzuca, Muriel; Nisse, Catherine; Cuny, Damien; Richard, Antoine; Denys, Sébastien; Heyman, Christophe; Roussel, Hélène; Bidar, Géraldine; Douay, Francis Bioaccessibility of trace elements as affected by soil parameters in smelter-contaminated agricultural soils: A statistical modeling approach Environmental Pollution, vol. 160, p. 130-138, 2012, (ACL). @article{Pelfrene2012a,
title = {Bioaccessibility of trace elements as affected by soil parameters in smelter-contaminated agricultural soils: A statistical modeling approach},
author = {Aurélie Pelfrêne and Christophe Waterlot and Muriel Mazzuca and Catherine Nisse and Damien Cuny and Antoine Richard and Sébastien Denys and Christophe Heyman and Hélène Roussel and Géraldine Bidar and Francis Douay},
year = {2012},
date = {2012-01-01},
journal = {Environmental Pollution},
volume = {160},
pages = {130-138},
abstract = {An investigation was undertaken to identify the most significant soil parameters that can be used to predict cd, pb, and zn bioaccessibility in smelter-contaminated agricultural soils. a robust model was established from an extended database of soils by using: (i) a training set of 280 samples to select the main soil parameters, to define the best population to be taken into account for the model elaboration, and to construct multivariate regression models, and (ii) a test set of 110 samples to validate the ability of the regression models. total carbonate, organic matter, sand, p2o5, free feemn oxide, and pseudototal al and trace element (te) contents appeared as the main variables governing te bioaccessibility. the statistical modeling approach was reasonably successful, indicating that the main soil factors influencing the bioaccessibility of tes were taken into account and the predictions could be applicable for further risk evaluation in the studied area.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
An investigation was undertaken to identify the most significant soil parameters that can be used to predict cd, pb, and zn bioaccessibility in smelter-contaminated agricultural soils. a robust model was established from an extended database of soils by using: (i) a training set of 280 samples to select the main soil parameters, to define the best population to be taken into account for the model elaboration, and to construct multivariate regression models, and (ii) a test set of 110 samples to validate the ability of the regression models. total carbonate, organic matter, sand, p2o5, free feemn oxide, and pseudototal al and trace element (te) contents appeared as the main variables governing te bioaccessibility. the statistical modeling approach was reasonably successful, indicating that the main soil factors influencing the bioaccessibility of tes were taken into account and the predictions could be applicable for further risk evaluation in the studied area. |
2012Article de journal ER4 Auteurs : Waterlot, Christophe; Pelfrêne, Aurélie; Douay, Francis Application of the high-speed self-reversal background corrector to the determination of cadmium by chemical vapor generation atomic absorption spectrometry Canadian Journal of Chemistry, vol. 90, p. 1-6, 2012, (ACL). @article{Waterlot2012c,
title = {Application of the high-speed self-reversal background corrector to the determination of cadmium by chemical vapor generation atomic absorption spectrometry},
author = {Christophe Waterlot and Aurélie Pelfrêne and Francis Douay},
year = {2012},
date = {2012-01-01},
journal = {Canadian Journal of Chemistry},
volume = {90},
pages = {1-6},
abstract = {Les concentrations en cadmium (cd) dans les solutions d’extraction (sels neutres) de sols contaminés sont souvent trop faibles pour pouvoir être déterminées par spectrométrie d’absorption atomique en utilisant une simple flamme pour atomiser les éléments. la quantification de cd a` l’état de traces requière donc des méthodes d’analyses sensibles mais aussi exemptes d’interférences. dans ce contexte, le dosage de cd a été réalisé au moyen d’un spectromètre d’absorption atomique couplé a` un générateur d’hydrure en mode continu et combiné a` une méthode de correction du bruit de fond par renversement de spectre. les conditions optimales d’utilisation de la technique ont été déterminées de manière a` obtenir une sensibilité maximale. pour des concentrations de 2,5 et 5 ng ml–1, les absorbances maximales de cd ont été obtenues en préparant une solution de nabh4 a` 3 % dans une solution de soude a` 1,5 % et en analysant des solutions dont la concentration en hno3 a été de 0,3 mol/l. dans ces conditions, la limite de détection a été de 1 ng ml–1 et un coefficient de variation de 5 % a été trouvé en analysant a` 10 reprises des solutions de cd a` 0,2 et 1 ng ml–1, montrant ainsi une bonne sensibilité et reproductibilité de la méthode. de plus, la méthode analytique proposée s’est avérée être une méthode efficace permettant de minimiser les interférences causées par les cations as, al, ca, fe, mn, ni, pb, se et zn jusqu’a` 10 g ml–1. la méthode a été validée par la détermination des concentrations en cd dans les solutions d’extraction au cacl2 0,01 mol/l de sols certifiés et de sols contaminés. les données acquises avec la méthode proposées ont été comparées a` celles obtenues en utilisant des méthodes d’analyses plus conventionnelles, spectrométrie absorption atomique avec atomisation électrothermique et flamme. l’ensemble des résultats obtenus a montré que la méthode proposée était sensible, reproductible et permettait de s’affranchir de certaines interférences.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Les concentrations en cadmium (cd) dans les solutions d’extraction (sels neutres) de sols contaminés sont souvent trop faibles pour pouvoir être déterminées par spectrométrie d’absorption atomique en utilisant une simple flamme pour atomiser les éléments. la quantification de cd a` l’état de traces requière donc des méthodes d’analyses sensibles mais aussi exemptes d’interférences. dans ce contexte, le dosage de cd a été réalisé au moyen d’un spectromètre d’absorption atomique couplé a` un générateur d’hydrure en mode continu et combiné a` une méthode de correction du bruit de fond par renversement de spectre. les conditions optimales d’utilisation de la technique ont été déterminées de manière a` obtenir une sensibilité maximale. pour des concentrations de 2,5 et 5 ng ml–1, les absorbances maximales de cd ont été obtenues en préparant une solution de nabh4 a` 3 % dans une solution de soude a` 1,5 % et en analysant des solutions dont la concentration en hno3 a été de 0,3 mol/l. dans ces conditions, la limite de détection a été de 1 ng ml–1 et un coefficient de variation de 5 % a été trouvé en analysant a` 10 reprises des solutions de cd a` 0,2 et 1 ng ml–1, montrant ainsi une bonne sensibilité et reproductibilité de la méthode. de plus, la méthode analytique proposée s’est avérée être une méthode efficace permettant de minimiser les interférences causées par les cations as, al, ca, fe, mn, ni, pb, se et zn jusqu’a` 10 g ml–1. la méthode a été validée par la détermination des concentrations en cd dans les solutions d’extraction au cacl2 0,01 mol/l de sols certifiés et de sols contaminés. les données acquises avec la méthode proposées ont été comparées a` celles obtenues en utilisant des méthodes d’analyses plus conventionnelles, spectrométrie absorption atomique avec atomisation électrothermique et flamme. l’ensemble des résultats obtenus a montré que la méthode proposée était sensible, reproductible et permettait de s’affranchir de certaines interférences. |
2012Article de journal ER4 Auteurs : Waterlot, Christophe; Pelfrêne, Aurélie; Douay, Francis Effects of iron concentration level in extracting solutions from contaminated soils on the determination of zinc by flame atomic absorption spectrometry with two background correctors Journal of Analytical Methods in Chemistry, p. 1-10, 2012, (ACL). @article{Waterlot2012d,
title = {Effects of iron concentration level in extracting solutions from contaminated soils on the determination of zinc by flame atomic absorption spectrometry with two background correctors},
author = {Christophe Waterlot and Aurélie Pelfrêne and Francis Douay},
year = {2012},
date = {2012-01-01},
journal = {Journal of Analytical Methods in Chemistry},
pages = {1-10},
abstract = {Zinc and iron concentrations were determined after digestion, water, and three-step sequential extractions of contaminated soils. analyses were carried out using flame absorption spectrometry with two background correctors: a deuterium lamp used as the continuum light source (d2 method) and the high-speed self-reversal method (hssr method). regarding the preliminary results obtained with synthetic solutions, the d2 method often emerged as an unsuitable configuration for compensating iron spectral interferences. in contrast, the hssr method appeared as a convenient and powerful configuration and was tested for the determination of zinc in contaminated soils containing high amounts of iron. simple, fast, and interference-free method, the hssr method allows zinc determination at the ppb level in the presence of large amounts of iron with high stability, sensitivity, and reproducibility of results. therefore, the hssr method is described here as a promising approach for monitoring zinc concentrations in various iron-containing samples without any pretreatment},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Zinc and iron concentrations were determined after digestion, water, and three-step sequential extractions of contaminated soils. analyses were carried out using flame absorption spectrometry with two background correctors: a deuterium lamp used as the continuum light source (d2 method) and the high-speed self-reversal method (hssr method). regarding the preliminary results obtained with synthetic solutions, the d2 method often emerged as an unsuitable configuration for compensating iron spectral interferences. in contrast, the hssr method appeared as a convenient and powerful configuration and was tested for the determination of zinc in contaminated soils containing high amounts of iron. simple, fast, and interference-free method, the hssr method allows zinc determination at the ppb level in the presence of large amounts of iron with high stability, sensitivity, and reproducibility of results. therefore, the hssr method is described here as a promising approach for monitoring zinc concentrations in various iron-containing samples without any pretreatment |
2011Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Douay, Francis In vitro digestion and DGT techniques for estimating cadmium and lead bioavailability in contaminated soils: Influence of gastric juice pH Science of the Total Environment, vol. 409, p. 5076-5085, 2011, (ACL). @article{Pelfrene2011,
title = {In vitro digestion and DGT techniques for estimating cadmium and lead bioavailability in contaminated soils: Influence of gastric juice pH},
author = {Aurélie Pelfrêne and Christophe Waterlot and Francis Douay},
year = {2011},
date = {2011-01-01},
journal = {Science of the Total Environment},
volume = {409},
pages = {5076-5085},
abstract = {A sensitivity analysis was conducted on an in vitro gastrointestinal digestion test (i) to investigate the influence of a low variation of gastric juice ph on the bioaccessibility of cd and pb in smelter-contaminated soils (fb, using the unified bioaccessibility method ubm) and fractions of metals that may be transported across the intestinal epithelium (fa, using the diffusive gradient in thin film technique), and (ii) to provide a better understanding of the significance of ph in health risk assessment through ingestion of soil by children. the risk of metal exposure to children (hazard quotient, hq) was determined for conditions that represent a worst-case scenario (i.e., ingestion rate of 200 mg day−1) using three separate calculations of metal daily intake: estimated daily intake (edi), bioaccessible edi (edi-fb), and oral bioavailable edi (edi-fa). the increasing ph from 1.2 to 1.7 resulted in: (i) no significant variation in cd-fb in the gastric phase but a decrease in the gastrointestinal phase; (ii) a decrease in soluble pb in the gastric phase and a significant variation in pb-fb in the gastrointestinal phase; (iii) a significant decrease in cd-fa and no variation in pb-fa; (iv) no change in edi-fb and edi-fa hqs for cd; (v) a significant decrease in edi-fb hqs and no significant variation in edi-fa hq for pb. in the analytical conditions, these results show that risk to children decreases when the bioavailability of pb in soils is taken into account and that the studied ph values do not affect the edi-fa hqs. the present results provide evidence that the inclusion of bioavailability analysis during health risk assessment could provide a more realistic estimate of cd and pb exposure, and opens a wide field of practical research on this topic (e.g., in contaminated site management).},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
A sensitivity analysis was conducted on an in vitro gastrointestinal digestion test (i) to investigate the influence of a low variation of gastric juice ph on the bioaccessibility of cd and pb in smelter-contaminated soils (fb, using the unified bioaccessibility method ubm) and fractions of metals that may be transported across the intestinal epithelium (fa, using the diffusive gradient in thin film technique), and (ii) to provide a better understanding of the significance of ph in health risk assessment through ingestion of soil by children. the risk of metal exposure to children (hazard quotient, hq) was determined for conditions that represent a worst-case scenario (i.e., ingestion rate of 200 mg day−1) using three separate calculations of metal daily intake: estimated daily intake (edi), bioaccessible edi (edi-fb), and oral bioavailable edi (edi-fa). the increasing ph from 1.2 to 1.7 resulted in: (i) no significant variation in cd-fb in the gastric phase but a decrease in the gastrointestinal phase; (ii) a decrease in soluble pb in the gastric phase and a significant variation in pb-fb in the gastrointestinal phase; (iii) a significant decrease in cd-fa and no variation in pb-fa; (iv) no change in edi-fb and edi-fa hqs for cd; (v) a significant decrease in edi-fb hqs and no significant variation in edi-fa hq for pb. in the analytical conditions, these results show that risk to children decreases when the bioavailability of pb in soils is taken into account and that the studied ph values do not affect the edi-fa hqs. the present results provide evidence that the inclusion of bioavailability analysis during health risk assessment could provide a more realistic estimate of cd and pb exposure, and opens a wide field of practical research on this topic (e.g., in contaminated site management). |
2011Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Douay, Francis Investigation of DGT as a metal speciation tool in artificial human gastrointestinal fluids Analytica Chimica Acta, vol. 699, p. 177-186, 2011, (ACL). @article{Pelfrene2011a,
title = {Investigation of DGT as a metal speciation tool in artificial human gastrointestinal fluids},
author = {Aurélie Pelfrêne and Christophe Waterlot and Francis Douay},
year = {2011},
date = {2011-01-01},
journal = {Analytica Chimica Acta},
volume = {699},
pages = {177-186},
abstract = {This paper reports the results of an investigation on the performance of the diffusive gradient in thin film technique (dgt) as a speciation tool for trace elements (tes) in artificial human gastrointestinal fluids. the validity of cd, pb, and zn sampling by dgt in digestive fluids was checked. the te bioaccessibility in highly contaminated soils was determined using the in vitro unified barge method (ubm) test. dgt devices were deployed in the gastrointestinal solutions obtained after carrying out the ubm test. the computer speciation code jess (joint expert speciation system) was used to predict the metal speciation of cd, pb, and zn. combining the in vitro test with the dgt technique and jess provided an approach to the te species available for transport across the intestinal epithelium. the gastrointestinal absorption of ingested te ranged from 8 to 30% for cd, 0.6 to 11% for pb, and 0.8 to 7% for zn and was influenced by te speciation. in this original approach, the dgt technique was found to be simple and reliable in the investigation of te chemical speciation in digestive fluids. extrapolation to the in vivo situation should be undertaken very cautiously and requires further investigation.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
This paper reports the results of an investigation on the performance of the diffusive gradient in thin film technique (dgt) as a speciation tool for trace elements (tes) in artificial human gastrointestinal fluids. the validity of cd, pb, and zn sampling by dgt in digestive fluids was checked. the te bioaccessibility in highly contaminated soils was determined using the in vitro unified barge method (ubm) test. dgt devices were deployed in the gastrointestinal solutions obtained after carrying out the ubm test. the computer speciation code jess (joint expert speciation system) was used to predict the metal speciation of cd, pb, and zn. combining the in vitro test with the dgt technique and jess provided an approach to the te species available for transport across the intestinal epithelium. the gastrointestinal absorption of ingested te ranged from 8 to 30% for cd, 0.6 to 11% for pb, and 0.8 to 7% for zn and was influenced by te speciation. in this original approach, the dgt technique was found to be simple and reliable in the investigation of te chemical speciation in digestive fluids. extrapolation to the in vivo situation should be undertaken very cautiously and requires further investigation. |
2011Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Mazzuca, Muriel; Nisse, Catherine; Bidar, Géraldine; Douay, Francis Assessing Cd, Pb, Zn mobility and human bioaccessibility in smelter-contaminated agricultural topsoils (northern France) Environmental Geochemistry and Health, vol. 33, no. 5, p. 477-493, 2011, (ACL). @article{Pelfrene2011b,
title = {Assessing Cd, Pb, Zn mobility and human bioaccessibility in smelter-contaminated agricultural topsoils (northern France)},
author = {Aurélie Pelfrêne and Christophe Waterlot and Muriel Mazzuca and Catherine Nisse and Géraldine Bidar and Francis Douay},
year = {2011},
date = {2011-01-01},
journal = {Environmental Geochemistry and Health},
volume = {33},
number = {5},
pages = {477-493},
abstract = {The extractability of cd, pb, and zn was investigated in contaminated agricultural topsoils located in an area highly affected by the past atmospheric emissions of two smelters in northern france in order to assess their mobility and human bioaccessibility. the determination of cd, pb, and zn bioaccessibility (unified barge method, in vitro test) was made to evaluate the absolute trace element (te) bioavailability. the results highlighted differences in bioaccessibility between cd, pb, and zn (cd[pb[ zn). the mean values of the bioaccessible fractions of cd, pb, and zn during the gastric phase were 82, 55, and 33%, respectively, of the pseudototal concentrations, whereas during the gastrointestinal phase, the bioaccessible fractions of metals decreased to 45, 20, and 10%, respectively. stepwise multiple regression analysis showed that human bioaccessibility was affected by various physicochemical parameters (i.e., sand, carbonates, organic matter, assimilated p, free al oxides, and pseudototal fe contents). sequential extractions were performed as an indication of the te availability in these soils. cadmium occurred in the more available fractions, pb was mostly present as bound by oxides, and a significant contribution to the pseudototal zn concentration was defined as the unavailable residual form related to the crystalline structures of minerals. the concepts of bioavailability and bioaccessibility are important for quantifying the risks associated with exposure to environmental pollutants and providing more realistic information for human health},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
The extractability of cd, pb, and zn was investigated in contaminated agricultural topsoils located in an area highly affected by the past atmospheric emissions of two smelters in northern france in order to assess their mobility and human bioaccessibility. the determination of cd, pb, and zn bioaccessibility (unified barge method, in vitro test) was made to evaluate the absolute trace element (te) bioavailability. the results highlighted differences in bioaccessibility between cd, pb, and zn (cd[pb[ zn). the mean values of the bioaccessible fractions of cd, pb, and zn during the gastric phase were 82, 55, and 33%, respectively, of the pseudototal concentrations, whereas during the gastrointestinal phase, the bioaccessible fractions of metals decreased to 45, 20, and 10%, respectively. stepwise multiple regression analysis showed that human bioaccessibility was affected by various physicochemical parameters (i.e., sand, carbonates, organic matter, assimilated p, free al oxides, and pseudototal fe contents). sequential extractions were performed as an indication of the te availability in these soils. cadmium occurred in the more available fractions, pb was mostly present as bound by oxides, and a significant contribution to the pseudototal zn concentration was defined as the unavailable residual form related to the crystalline structures of minerals. the concepts of bioavailability and bioaccessibility are important for quantifying the risks associated with exposure to environmental pollutants and providing more realistic information for human health |
2011Conférence ER4 Auteurs : Pelfrêne, Aurélie; Waterlot, Christophe; Nisse, Catherine; Mazzuca, Muriel; Douay, Francis Assessing Cd and Pb human bioaccessibility in smelter-contaminated agricultural and urban soils (northern France) 11th International Conference on the Biogeochemistry of Trace Elements (ICOBTE). 3-7 July 2011, Florence (Italy), 2011, (ACTI). @conference{Pelfrene2011c,
title = {Assessing Cd and Pb human bioaccessibility in smelter-contaminated agricultural and urban soils (northern France)},
author = {Aurélie Pelfrêne and Christophe Waterlot and Catherine Nisse and Muriel Mazzuca and Francis Douay},
year = {2011},
date = {2011-01-01},
booktitle = {11th International Conference on the Biogeochemistry of Trace Elements (ICOBTE). 3-7 July 2011, Florence (Italy)},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2011Conférence ER4 Auteurs : Waterlot, Christophe; Pelfrêne, Aurélie; Douay, Francis Lead mobility and bioaccessibility in kitchen garden soils (northern France) after immobilization with a mixture of phosphates 11th International Conference on the Biogeochemistry of Trace Elements (ICOBTE). 3-7 July 2011, Florence (Italy), 2011, (ACTI). @conference{Waterlot2011d,
title = {Lead mobility and bioaccessibility in kitchen garden soils (northern France) after immobilization with a mixture of phosphates},
author = {Christophe Waterlot and Aurélie Pelfrêne and Francis Douay},
year = {2011},
date = {2011-01-01},
booktitle = {11th International Conference on the Biogeochemistry of Trace Elements (ICOBTE). 3-7 July 2011, Florence (Italy)},
note = {ACTI},
keywords = {ER4},
pubstate = {published},
tppubtype = {conference}
}
|
2010Article de journal ER4 Auteurs : Roussel, Hélène; Waterlot, Christophe; Pelfrêne, Aurélie; Pruvot, Christelle; Mazzuca, Muriel; Douay, Francis Cd, Pb and Zn oral bioaccessibility of urban soils contaminated in the past by atmospheric emissions from two lead and zinc smelters Archives of Environmental Contamination and Toxicology, vol. 58, no. 4, p. 945-954, 2010, (ACL). @article{Roussel2010,
title = {Cd, Pb and Zn oral bioaccessibility of urban soils contaminated in the past by atmospheric emissions from two lead and zinc smelters},
author = {Hélène Roussel and Christophe Waterlot and Aurélie Pelfrêne and Christelle Pruvot and Muriel Mazzuca and Francis Douay},
year = {2010},
date = {2010-01-01},
journal = {Archives of Environmental Contamination and Toxicology},
volume = {58},
number = {4},
pages = {945-954},
abstract = {Ingestion of dust or soil particles could pose a potential health risk due to long-term metal trace element (mte) exposure. twenty-seven urban topsoil samples (kitchen garden and lawn) were collected and analyzed for cd, pb and zn using the unified bioaccessibility research group of europe (barge) method (ubm) test to estimate the human bioaccessibility of these elements. the quantities of cd, pb and zn extracted from soils indicated, on average, 68, 62 and 47% bioaccessibility, respectively, in the gastric phase and 31, 32 and 23% bioaccessibility, respectively, in the gastro-intestinal phase. significant positive correlations were observed between concentrations extracted with ubm and total mte contents. stepwise multiple regression analysis showed that human bioaccessibility was also affected by some physico-chemical soil parameters (i.e. total nitrogen, carbonates, clay contents and ph). the unified test presents some valuable data for risk assessment. indeed, the incorporation of oral bioaccessible concentrations into risk estimations could give more realistic information for health risk assessment.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Ingestion of dust or soil particles could pose a potential health risk due to long-term metal trace element (mte) exposure. twenty-seven urban topsoil samples (kitchen garden and lawn) were collected and analyzed for cd, pb and zn using the unified bioaccessibility research group of europe (barge) method (ubm) test to estimate the human bioaccessibility of these elements. the quantities of cd, pb and zn extracted from soils indicated, on average, 68, 62 and 47% bioaccessibility, respectively, in the gastric phase and 31, 32 and 23% bioaccessibility, respectively, in the gastro-intestinal phase. significant positive correlations were observed between concentrations extracted with ubm and total mte contents. stepwise multiple regression analysis showed that human bioaccessibility was also affected by some physico-chemical soil parameters (i.e. total nitrogen, carbonates, clay contents and ph). the unified test presents some valuable data for risk assessment. indeed, the incorporation of oral bioaccessible concentrations into risk estimations could give more realistic information for health risk assessment. |
2008Article de journal ER4 Auteurs : Pelfrêne, Aurélie; Gassama, Nathalie; Grimaud, Daniel Dissolved Cu(II) speciation in unpolluted soil solutions of a planosolic horizon Electroanalysis, vol. 20, no. 8, p. 841-850, 2008, (ACL). @article{Pelfrene2008,
title = {Dissolved Cu(II) speciation in unpolluted soil solutions of a planosolic horizon},
author = {Aurélie Pelfrêne and Nathalie Gassama and Daniel Grimaud},
year = {2008},
date = {2008-01-01},
journal = {Electroanalysis},
volume = {20},
number = {8},
pages = {841-850},
abstract = {Dissolved cu(ii) speciation in unpolluted soil solutions from different horizons was studied using differential pulse anodic stripping voltammetry (dpasv). three sites were selected according to topography and monitored for three years. experiments evidence cu(ii) can be bound by dom (dissolved organic matter) through complexation and/or adsorption reactions. the complexation capacity and the corresponding conditional stability constant were determined for complexation reactions. the adsorbing sites were titrated. a potential binding coefficient was calculated to compare both types of reactions. results show adsorption is less frequent than complexation but exhibits higher binding coefficient.},
note = {ACL},
keywords = {ER4},
pubstate = {published},
tppubtype = {article}
}
Dissolved cu(ii) speciation in unpolluted soil solutions from different horizons was studied using differential pulse anodic stripping voltammetry (dpasv). three sites were selected according to topography and monitored for three years. experiments evidence cu(ii) can be bound by dom (dissolved organic matter) through complexation and/or adsorption reactions. the complexation capacity and the corresponding conditional stability constant were determined for complexation reactions. the adsorbing sites were titrated. a potential binding coefficient was calculated to compare both types of reactions. results show adsorption is less frequent than complexation but exhibits higher binding coefficient. |
