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Metal pollution trajectories and mixture risk assessed by combining dated cores and subsurface sediments along a major European river (Rhône River, France)

dc.rights.licenseopenen_US
dc.contributor.authorDENDIEVEL, André-Marie
hal.structure.identifierLaboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés [LEHNA]
dc.contributor.authorMOURIER, Brice
hal.structure.identifierRiverLy - Fonctionnement des hydrosystèmes [RiverLy]
dc.contributor.authorDABRIN, Aymeric
hal.structure.identifierRiverLy - Fonctionnement des hydrosystèmes [RiverLy]
dc.contributor.authorDELILE, Hugo
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCOYNEL, Alexandra
hal.structure.identifierLaboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés [LEHNA]
dc.contributor.authorGOSSET, Antoine
hal.structure.identifierLaboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés [LEHNA]
dc.contributor.authorLIBER, Yohan
hal.structure.identifierEnvironnement, Ville, Société [EVS]
dc.contributor.authorBERGER, Jean-François
hal.structure.identifierLaboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés [LEHNA]
dc.contributor.authorBEDELL, Jean-Philippe
dc.date.accessioned2024-01-23T12:27:57Z
dc.date.available2024-01-23T12:27:57Z
dc.date.issued2020-11
dc.identifier.issn0160-4120en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187413
dc.description.abstractEnIn European rivers, research and monitoring programmes have targeted metal pollution from bed and floodplain sediments since the mid-20th century by using various sampling and analysis protocols. We propose to characterise metal contamination trajectories since the 1960s based on the joint use of a large amount of data from dated cores and subsurface sediments along the Rhône River (ca. 512 km, Switzerland–France). For the reconstruction of spatio-temporal trends, enrichment factors (EF) and geo-accumulation (Igeo) approaches were compared. The latter index was preferred due to the recurrent lack of grain-size and lithogenic elements in the dataset. Local geochemical backgrounds were established near (1) the Subalps and (2) the Massif Central to consider the geological variability of the watershed. A high contamination (Igeo = 3–5) was found for Cd, Cu and Zn from upstream to downstream over the period 1980–2000. This pattern is consistent with long-term emissions from major cities and the nearby industrial areas of the Upper Rhône (Geneva, Arve Valley), and Middle Rhône (Lyon, Chemical Corridor, Gier Valley). Hotspots due to Cu and Zn leaching from vineyards, mining, and highway runoff were also identified, while Pb was especially driven by industrial sources. The recovery time of pollution in sediment varied according to the metals and was shorter upstream of Lyon (15–20 years) than downstream (30–40 years). More widely, it was faster on the Rhône than along other European rivers (e.g. Seine and Rhine). Finally, the ecotoxicological mixture risk of metal with Persistent Organic Pollutants (POPs) for sediment-dwelling organisms showed a medium “cocktail risk” dominated by metals upstream of Lyon, although it is enhanced due to POPs downstream, and southward to the delta and the Mediterranean Sea. Overall, this study demonstrates the heterogeneity of the contamination trends along large fluvial corridors such as the Rhône River.
dc.description.sponsorshipDispositif de recherche interdisciplinaire sur les Interactions Hommes-Milieux - ANR-11-LABX-0010en_US
dc.language.isoENen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nd/
dc.subject.enRiver sediments
dc.subject.enPollution legacy
dc.subject.enMetal contamination
dc.subject.enGeo-accumulation index
dc.subject.enGeochemical baselines
dc.title.enMetal pollution trajectories and mixture risk assessed by combining dated cores and subsurface sediments along a major European river (Rhône River, France)
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.envint.2020.106032en_US
dc.subject.halSciences de l'environnement/Biodiversité et Ecologieen_US
bordeaux.journalEnvironment Internationalen_US
bordeaux.page106032en_US
bordeaux.volume144en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamTGMen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-02971683
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=Environment%20International&rft.date=2020-11&rft.volume=144&rft.spage=106032&rft.epage=106032&rft.eissn=0160-4120&rft.issn=0160-4120&rft.au=DENDIEVEL,%20Andr%C3%A9-Marie&MOURIER,%20Brice&DABRIN,%20Aymeric&DELILE,%20Hugo&COYNEL,%20Alexandra&rft.genre=article


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