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Combined spatial and retrospective analysis of fluoroalkyl chemicals in fluvial sediments reveal changes in levels and patterns over the last 40 years

dc.rights.licenseopenen_US
hal.structure.identifierÉquipe 5 - Impacts des Polluants sur les Écosystèmes
dc.contributor.authorMOURIER, Brice
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLABADIE, Pierre
hal.structure.identifierGéoHydrosystèmes COntinentaux [GéHCO]
dc.contributor.authorDESMET, Marc
hal.structure.identifierGéoHydrosystèmes COntinentaux [GéHCO]
dc.contributor.authorGROSBOIS, Cécile
hal.structure.identifierGéoHydrosystèmes COntinentaux [GéHCO]
dc.contributor.authorRAUX, Julie
hal.structure.identifierMorphodynamique Continentale et Côtière [M2C]
dc.contributor.authorDEBRET, Maxime
hal.structure.identifierMorphodynamique Continentale et Côtière [M2C]
dc.contributor.authorCOPARD, Yoann
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorPARDON, Patrick
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorBUDZINSKI, Hélène
hal.structure.identifierAgence de l'Eau Rhin-Meuse
dc.contributor.authorBABUT, M.
dc.date.accessioned2024-01-30T15:43:16Z
dc.date.available2024-01-30T15:43:16Z
dc.date.issued2019-10
dc.identifier.issn0269-7491en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187644
dc.description.abstractEnBed sediments and a dated sediment core were collected upstream and downstream from the city of Lyon (France) to assess the spatial and temporal trends of contamination by per- and polyfluoroalkyl substances (PFASs) in this section of the Rhône River. Upstream from Lyon, concentrations of total PFASs (ΣPFASs) in sediments are low (between 0.19 and 2.6 ng g−1 dry weight - dw), being characterized by a high proportion of perfluorooctane sulfonate (PFOS). Downstream from Lyon, and also from a fluoropolymer manufacturing plant, ΣPFASs concentrations reach 48.7 ng g−1 dw. A gradual decrease of concentrations is reported at the coring site further downstream (38 km). Based on a dated sediment core, the temporal evolution of PFASs is reconstructed from 1984 to 2013. Prior to 1987, ΣPFASs concentrations were low (≤2 ng g−1 dw), increasing to a maximum of 51 ng g−1 dw in the 1990s and then decreasing from 2002 to the present day (∼10 ng g−1 dw). In terms of the PFAS pattern, the proportion of perfluoroalkyl sulfonic acids (PFSAs) has remained stable since the 1980s (∼10%), whereas large variations are reported for carboxylic acids (PFCAs). Long chain- (C > 8) PFCAs characterized by an even number of perfluorinated carbons represent about 74% of the total PFAS load until 2005. However, from 2005 to 2013, the relative contribution of long chain- (C > 8) PFCAs with an odd number of perfluorinated carbons reaches 80%. Such changes in the PFAS pattern likely highlight a major shift in the industrial production process. This spatial and retrospective study provides valuable insights into the long-term contamination patterns of PFAS chemicals in river basins impacted by both urban and industrial activities.
dc.language.isoENen_US
dc.subject.enRhône river
dc.subject.enTemporal trend
dc.subject.enSpatial trend
dc.subject.enPer- and polyfluoroalkyl substances
dc.subject.enSediment core
dc.subject.enBed sediment
dc.title.enCombined spatial and retrospective analysis of fluoroalkyl chemicals in fluvial sediments reveal changes in levels and patterns over the last 40 years
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.envpol.2019.07.079en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalEnvironmental Pollutionen_US
bordeaux.page1117-1125en_US
bordeaux.volume253en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue253en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamLPTCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-02282820
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental%20Pollution&rft.date=2019-10&rft.volume=253&rft.issue=253&rft.spage=1117-1125&rft.epage=1117-1125&rft.eissn=0269-7491&rft.issn=0269-7491&rft.au=MOURIER,%20Brice&LABADIE,%20Pierre&DESMET,%20Marc&GROSBOIS,%20C%C3%A9cile&RAUX,%20Julie&rft.genre=article


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