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Past and present platinum contamination of a major European fluvial-estuarine system: Insights from river sediments and estuarine oysters
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Abdou, M.; Schaefer, J.; Cobelo-garcia, A.; Neira, P.; Petit, J. C. J.; Auger, Dominique; Chiffoleau, Jean-francois; Blanc, Gerard.
Platinum Group Metals (PGM) are modern, technologically relevant elements for which (i) the anthropogenic cycle has outcompeted the natural cycles and (ii) environmental behavior, fate and impact are still widely unknown. Stripping voltammetry was used for accurate determinations of platinum (Pt) in historical records of river sediments and estuarine oysters from the Gironde fluvial-estuarine continuum (SW France) comprising the Lot River. Sediment cores from the Lot River, dated from 1952 to 2001, showed past Pt contamination due to former industrial (smelter) activities in the Lot River watershed. These samples revealed the phasing-out of a historical Pt contamination with Pt/Th (Thorium) values of 11 × 10− 5 ± 0.79 × 10− 5 for the deepest part of the...
Tipo: Text
Palavras-chave: Platinum; Sediments; Wild oysters; Bioaccumulation.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00311/42177/41478.pdf