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Silver origins and spatial distribution in soils of southwestern France: A first assessment with cokriging

dc.rights.licenseopenen_US
hal.structure.identifierBordeaux Sciences Agro [Gradignan]
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSAVIGNAN, Lionel
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorFAUCHER, Stéphane
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorJALABERT, Stephanie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLEE, Alexandre
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorLESPES, Gaetane
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCHERY, Philippe
ORCID: 0000-0003-2291-8093
IDREF: 192000543
dc.date.accessioned2024-03-11T12:47:10Z
dc.date.available2024-03-11T12:47:10Z
dc.date.issued2023-05
dc.identifier.issn0341-8162en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188673
dc.description.abstractEnAg is a rare, non-essential metal with many applications in different forms, including nanoparticles (Ag-NPs). Its release into the soil environment can represent a risk, due to the toxicity of silver. This study is based on the analysis of samples from the two sampling campaigns of the Soil Quality Measurement Network, RMQS1 and RMQS2, to establish the spatial distribution and origin of Ag in the soils of southwestern France (area of 90,293 km2). Given the progress of the second campaign (completion in 2027), we chose to do a cokriging to estimate the spatial distribution, with Pb, Cd or Cu as potential secondary variables. The results of the analyzes of the 35 samples of the RMQS2 indicate a range of Ag concentration in the soils going from 0.015 to 0.222 mg kg−1 and a median of 0.081 mg kg−1. Correlations were found between the concentrations of Ag Cd, Cu and Pb, and also between Ag concentrations and distance to Pb mines and deposits (r = 0.62). This suggests a common origin for Ag and Pb linked to historical exploitations of argentiferous galena. No link could be demonstrated between the concentration of Ag and the high density of anti-hail ground generators in the region. The analysis of the (auto-)variograms showed that Pb is the most relevant variable compared to Cd and Cu to achieve a cokriging. Thus, based on Ag concentrations from RMQS2 and Pb concentrations from RMQS1 (356 samples), a linear co-regionalization model was established and the co-kriging of Ag concentrations in soils calculated. Compared to ordinary kriging, cokriging improved the quality of the interpolation (decrease in the root mean square error).
dc.language.isoENen_US
dc.title.enSilver origins and spatial distribution in soils of southwestern France: A first assessment with cokriging
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.catena.2023.106992en_US
dc.subject.halChimieen_US
dc.subject.halChimie/Chimie analytiqueen_US
bordeaux.journalCATENAen_US
bordeaux.page106992en_US
bordeaux.volume224en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamPROMESSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-03996549
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=CATENA&rft.date=2023-05&rft.volume=224&rft.spage=106992&rft.epage=106992&rft.eissn=0341-8162&rft.issn=0341-8162&rft.au=SAVIGNAN,%20Lionel&FAUCHER,%20St%C3%A9phane&JALABERT,%20Stephanie&LEE,%20Alexandre&LESPES,%20Gaetane&rft.genre=article


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