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Spatio-temporal assessment of the polychlorinated biphenyl (PCB) sediment contamination in four major French river corridors (1945–2018)

dc.rights.licenseopenen_US
dc.contributor.authorDENDIEVEL, André-Marie
dc.contributor.authorMOURIER, Brice
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCOYNEL, Alexandra
dc.contributor.authorEVRARD, Olivier
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLABADIE, Pierre
dc.contributor.authorAYRAULT, Sophie
dc.contributor.authorDEBRET, Maxime
dc.contributor.authorKOLTALO, Florence
dc.contributor.authorCOPARD, Yoann
dc.contributor.authorFAIVRE, Quentin
dc.contributor.authorGARDES, Thomas
dc.contributor.authorVAUCLIN, Sophia
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBUDZINSKI, Hélène
dc.contributor.authorGROSBOIS, Cécile
dc.contributor.authorWINIARSKI, Thierry
dc.contributor.authorDESMET, Marc
dc.date.accessioned2024-04-16T12:39:27Z
dc.date.available2024-04-16T12:39:27Z
dc.date.issued2020-05-20
dc.identifier.issn1866-3508en_US
dc.identifier.urioai:crossref.org:10.5194/essd-12-1153-2020
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199102
dc.description.abstractEnAbstract. Environmental pollution by polychlorinated biphenyls (PCBs) is a key cause for concern about river quality because of their low degradation rates leading to their accumulation in sediments and living organisms. An original interdisciplinary work was conducted along the four main French rivers (Seine, Rhône, Loire and Garonne rivers), which flow into major European seas. We completed a dataset based on sediment analyses provided by monitoring agencies, port authorities and research teams on different solid matrices (sediment cores, bed and flood deposits, suspended particulate matter and dredged sediments). This dataset focused on the seven indicator PCBs and their sum (ΣPCBi) from 1945 to 2018 (nΣPCBi =1416). Special effort was put into the quality control to provide robust spatio-temporal information. Taking into account hydrological and human drivers, we outlined two main pollution trends: (1) from 1945 to 1975, a quick increase in ΣPCBi (up to 4 mg kg−1 dry weight, dw) and a sharp decrease in the 1980s on the Seine and Loire rivers and (2) increasing but moderate ΣPCBi levels (50 to 150 µg kg−1 dw) followed by a decline after the 1990s on the Rhône and Garonne rivers. In addition to these patterns, PCB emissions from urban and industrial areas or accidental events were significant in each river. Finally, when calculating specific flux, the Rhône exhibited the uppermost ΣPCBi load (up to 12 µgm-2yr-1 in 1977–1987), at least 25 % higher than those of the Seine and Loire rivers, while the Garonne showed a very low flux. In western Europe, we confirmed that the Rhône, Seine and Loire rivers contribute significantly to the PCB contamination of the seas, while French specific ΣPCBi fluxes are 2 orders of magnitude lower than those found in American or Asian rivers. The dataset is available at https://doi.org/10.1594/PANGAEA.904277 (Dendievel et al., 2019).
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enSpatio-temporal assessment of the polychlorinated biphenyl (PCB) sediment contamination in four major French river corridors (1945–2018)
dc.typeArticle de revueen_US
dc.identifier.doi10.5194/essd-12-1153-2020en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalEarth System Science Dataen_US
bordeaux.page1153-1170en_US
bordeaux.volume12en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue2en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamLPTCen_US
bordeaux.teamTGMen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
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dc.rights.ccCC BYen_US
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