Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish
Nowadays, numerous natural or manmade chemical compounds still disseminate in our environment. Among them, Polychlorobiphényls (PCBs) are compounds produced between 1920 and 1990 for various industrial applications, today considered as ubiquitous pollutants. As 1 of the 12 Persistent Organic Polluta...
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ftunigrenoble:oai:HAL:tel-03574658v1 2024-05-12T08:00:35+00:00 Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish Ecodynamique des PCB en milieu lacustre : transferts abiotiques et bioaccumulation par les espèces piscicoles. L'exemple du Lac du Bourget Masset, Thibault Laboratoire de Chimie Moléculaire et Environnement (LCME) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Université Grenoble Alpes Emmanuel Naffrechoux Christine Piot 2019-11-25 https://theses.hal.science/tel-03574658 https://theses.hal.science/tel-03574658/document https://theses.hal.science/tel-03574658/file/MASSET_2019_archivage.pdf fr fre HAL CCSD NNT: 2019GREAA023 tel-03574658 https://theses.hal.science/tel-03574658 https://theses.hal.science/tel-03574658/document https://theses.hal.science/tel-03574658/file/MASSET_2019_archivage.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-03574658 Biodiversité et Ecologie. Université Grenoble Alpes, 2019. Français. ⟨NNT : 2019GREAA023⟩ PCB Decontamination Lakes Bioaccumulation Fish Volatilization Décontamination Lacs Poissons Volatilisation [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/doctoralThesis Theses 2019 ftunigrenoble 2024-04-18T03:08:52Z Nowadays, numerous natural or manmade chemical compounds still disseminate in our environment. Among them, Polychlorobiphényls (PCBs) are compounds produced between 1920 and 1990 for various industrial applications, today considered as ubiquitous pollutants. As 1 of the 12 Persistent Organic Pollutants (POPs) referred-to by the Stockholm Convention in 2001, they exhibit physicochemical characteristic (high environmental half-life, low degradation, semi-volatility) enabling their mobility and persistency in the environment. Moreover, they are highly toxic (classified as carcinogenic molecules by the International Agency for Research on Cancer (IARC) and, thus, responsible for many environmental and sanitary issues over the globe. Knowledge of abiotic and biotic transfers mechanisms of PCBs in perialpine aquatic ecosystems is limited. PCB ecodynamics need further investigation for a better understanding of their fate in these highly sensitive ecosystems. The main objectives of this thesis were i) to identify the main fluxes driving PCBs dynamics in perialpine lakes, ii) to evaluate appropriate models or methodologies for accurate determination of volatilization fluxes of PCB at the air/water interface and iii) to characterize environmental, trophic and physiologic factors affecting PCB contamination of fish in perialpine lakes. Lake Bourget (Savoie – France) was chosen as the study site for this work. Field sampling was performed and coupled with modeling approaches enabling to identify sediment burial and volatilization as the main mechanisms leading to the natural decontamination of the lake. Tributaries inflows were responsible for most of the PCB inputs to the lake water. An experimental device was developed for direct measurements of the volatilization flux and the results were compared with the model-based approaches currently used in the literature. Finally, bioaccumulation mechanisms of PCBs for two fish species (Arctic char and whitefish) were disentangled. Anatomic, trophic and environmental factors ... Doctoral or Postdoctoral Thesis Arctic Université Grenoble Alpes: HAL Arctic |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
French |
topic |
PCB Decontamination Lakes Bioaccumulation Fish Volatilization Décontamination Lacs Poissons Volatilisation [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
PCB Decontamination Lakes Bioaccumulation Fish Volatilization Décontamination Lacs Poissons Volatilisation [SDE.BE]Environmental Sciences/Biodiversity and Ecology Masset, Thibault Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
topic_facet |
PCB Decontamination Lakes Bioaccumulation Fish Volatilization Décontamination Lacs Poissons Volatilisation [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
Nowadays, numerous natural or manmade chemical compounds still disseminate in our environment. Among them, Polychlorobiphényls (PCBs) are compounds produced between 1920 and 1990 for various industrial applications, today considered as ubiquitous pollutants. As 1 of the 12 Persistent Organic Pollutants (POPs) referred-to by the Stockholm Convention in 2001, they exhibit physicochemical characteristic (high environmental half-life, low degradation, semi-volatility) enabling their mobility and persistency in the environment. Moreover, they are highly toxic (classified as carcinogenic molecules by the International Agency for Research on Cancer (IARC) and, thus, responsible for many environmental and sanitary issues over the globe. Knowledge of abiotic and biotic transfers mechanisms of PCBs in perialpine aquatic ecosystems is limited. PCB ecodynamics need further investigation for a better understanding of their fate in these highly sensitive ecosystems. The main objectives of this thesis were i) to identify the main fluxes driving PCBs dynamics in perialpine lakes, ii) to evaluate appropriate models or methodologies for accurate determination of volatilization fluxes of PCB at the air/water interface and iii) to characterize environmental, trophic and physiologic factors affecting PCB contamination of fish in perialpine lakes. Lake Bourget (Savoie – France) was chosen as the study site for this work. Field sampling was performed and coupled with modeling approaches enabling to identify sediment burial and volatilization as the main mechanisms leading to the natural decontamination of the lake. Tributaries inflows were responsible for most of the PCB inputs to the lake water. An experimental device was developed for direct measurements of the volatilization flux and the results were compared with the model-based approaches currently used in the literature. Finally, bioaccumulation mechanisms of PCBs for two fish species (Arctic char and whitefish) were disentangled. Anatomic, trophic and environmental factors ... |
author2 |
Laboratoire de Chimie Moléculaire et Environnement (LCME) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Université Grenoble Alpes Emmanuel Naffrechoux Christine Piot |
format |
Doctoral or Postdoctoral Thesis |
author |
Masset, Thibault |
author_facet |
Masset, Thibault |
author_sort |
Masset, Thibault |
title |
Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
title_short |
Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
title_full |
Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
title_fullStr |
Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
title_full_unstemmed |
Ecodynamics of PCBs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
title_sort |
ecodynamics of pcbs in lacustrine environments : abiotic transfers and bioaccumulation in fish |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://theses.hal.science/tel-03574658 https://theses.hal.science/tel-03574658/document https://theses.hal.science/tel-03574658/file/MASSET_2019_archivage.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
https://theses.hal.science/tel-03574658 Biodiversité et Ecologie. Université Grenoble Alpes, 2019. Français. ⟨NNT : 2019GREAA023⟩ |
op_relation |
NNT: 2019GREAA023 tel-03574658 https://theses.hal.science/tel-03574658 https://theses.hal.science/tel-03574658/document https://theses.hal.science/tel-03574658/file/MASSET_2019_archivage.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1798842491912323072 |