Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France)
International audience Micro-plastics (MPs) and organophosphate ester (OPE) flame retardants and plasticizers are both emerging threats to the marine environment, presenting multiple sources in the environment and being widely distributed in seas and oceans of the planet. Marine sediments are though...
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ftuniveiffel:oai:HAL:hal-03709862v1 2023-05-15T17:38:36+02:00 Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) Castro-Jiménez, J Aminot, Y Pollono, C Idjaton, B Bizzozero, L Pierre-Duplessix, O Phuong, N, Gasperi, Johnny Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Eau et Environnement (GERS-LEE ) Université Gustave Eiffel Brest, France 2022-06-27 https://hal.archives-ouvertes.fr/hal-03709862 en eng HAL CCSD hal-03709862 https://hal.archives-ouvertes.fr/hal-03709862 3ième rencontre du GDR Polymères et Océans 2022 https://hal.archives-ouvertes.fr/hal-03709862 3ième rencontre du GDR Polymères et Océans 2022, Jun 2022, Brest, France Plastic additives Degradation metabolies Bioaccumulation Coastal pollution [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2022 ftuniveiffel 2022-12-06T10:06:17Z International audience Micro-plastics (MPs) and organophosphate ester (OPE) flame retardants and plasticizers are both emerging threats to the marine environment, presenting multiple sources in the environment and being widely distributed in seas and oceans of the planet. Marine sediments are thought to be a sink for both OPEs and MPs. Therefore, determining their environmental occurrence in sediments becomes crucial to better understand their current stocks, the exposure of benthic organisms, and possible impacts on the global functioning of marine ecosystems. The Loire is the longest river in France representing an important freshwater discharge to the North-East Atlantic Ocean. Its estuary is considered as an ecosystem of high ecological value as well as an ocean/land interface for sea tradeand associated industrial activities. Two sampling campaigns conducted in 2021-2022 allowed the collection of surface sediments and the deposit feeder clam Scrobicularia plana (SP) in four study areas subjected to different anthropogenic pressures. A large set of OPEs were quantified by isotopic dilution LC-MS/MS after thorough clean-up and MP abundance was determined after matrix digestion and polymer isolation and the fragments were characterized by μ-FTIR. Our results confirm the overall presence of both MPs and most abundant chlorinated and non-chlorinated OPEs in sediments fromthe study area. The OPE concentrations in sediment and SP and geographical distributions are discussed with regards to MP abundances. A first estimation of the field-derived biota-sediment accumulation factors (BSAFs) of OPEs will be also presented. These results emphasize the need to further explore the sources and fate of this class of compounds ubiquitous in the marine environment. Conference Object North East Atlantic HAL Univ-Eiffel (Université Gustave Eiffel) |
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Open Polar |
collection |
HAL Univ-Eiffel (Université Gustave Eiffel) |
op_collection_id |
ftuniveiffel |
language |
English |
topic |
Plastic additives Degradation metabolies Bioaccumulation Coastal pollution [SDE]Environmental Sciences |
spellingShingle |
Plastic additives Degradation metabolies Bioaccumulation Coastal pollution [SDE]Environmental Sciences Castro-Jiménez, J Aminot, Y Pollono, C Idjaton, B Bizzozero, L Pierre-Duplessix, O Phuong, N, Gasperi, Johnny Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) |
topic_facet |
Plastic additives Degradation metabolies Bioaccumulation Coastal pollution [SDE]Environmental Sciences |
description |
International audience Micro-plastics (MPs) and organophosphate ester (OPE) flame retardants and plasticizers are both emerging threats to the marine environment, presenting multiple sources in the environment and being widely distributed in seas and oceans of the planet. Marine sediments are thought to be a sink for both OPEs and MPs. Therefore, determining their environmental occurrence in sediments becomes crucial to better understand their current stocks, the exposure of benthic organisms, and possible impacts on the global functioning of marine ecosystems. The Loire is the longest river in France representing an important freshwater discharge to the North-East Atlantic Ocean. Its estuary is considered as an ecosystem of high ecological value as well as an ocean/land interface for sea tradeand associated industrial activities. Two sampling campaigns conducted in 2021-2022 allowed the collection of surface sediments and the deposit feeder clam Scrobicularia plana (SP) in four study areas subjected to different anthropogenic pressures. A large set of OPEs were quantified by isotopic dilution LC-MS/MS after thorough clean-up and MP abundance was determined after matrix digestion and polymer isolation and the fragments were characterized by μ-FTIR. Our results confirm the overall presence of both MPs and most abundant chlorinated and non-chlorinated OPEs in sediments fromthe study area. The OPE concentrations in sediment and SP and geographical distributions are discussed with regards to MP abundances. A first estimation of the field-derived biota-sediment accumulation factors (BSAFs) of OPEs will be also presented. These results emphasize the need to further explore the sources and fate of this class of compounds ubiquitous in the marine environment. |
author2 |
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Eau et Environnement (GERS-LEE ) Université Gustave Eiffel |
format |
Conference Object |
author |
Castro-Jiménez, J Aminot, Y Pollono, C Idjaton, B Bizzozero, L Pierre-Duplessix, O Phuong, N, Gasperi, Johnny |
author_facet |
Castro-Jiménez, J Aminot, Y Pollono, C Idjaton, B Bizzozero, L Pierre-Duplessix, O Phuong, N, Gasperi, Johnny |
author_sort |
Castro-Jiménez, J |
title |
Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) |
title_short |
Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) |
title_full |
Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) |
title_fullStr |
Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) |
title_full_unstemmed |
Micro-plastics and organophosphate ester additives in sediments and benthic organisms from the Loire Estuary (France) |
title_sort |
micro-plastics and organophosphate ester additives in sediments and benthic organisms from the loire estuary (france) |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.archives-ouvertes.fr/hal-03709862 |
op_coverage |
Brest, France |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
3ième rencontre du GDR Polymères et Océans 2022 https://hal.archives-ouvertes.fr/hal-03709862 3ième rencontre du GDR Polymères et Océans 2022, Jun 2022, Brest, France |
op_relation |
hal-03709862 https://hal.archives-ouvertes.fr/hal-03709862 |
_version_ |
1766139107591847936 |