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Provedor de dados:  ArchiMer
País:  France
Título:  Evidencing the Impact of Coastal Contaminated Sediments on Mussels Through Pb Stable Isotopes Composition
Autores:  Huy Dang, Duc
Schafer, Jörg
Brach-papa, Christophe
Lenoble, Veronique
Durrieu, Gael
Dutruch, Lionel
Chiffoleau, Jean-francois
Gonzalez, Jean-louis
Blanc, Gerard
Mullot, Jean-ulrich
Mounier, Stephane
Garnier, Cedric
Data:  2015-10
Ano:  2015
Resumo:  Heavily contaminated sediments are a serious concern for ecosystem quality, especially in coastal areas, where vulnerability is high due to intense anthropogenic pressure. Surface sediments (54 stations), 50 cm interface cores (five specific stations), river particles, coal and bulk Pb plate from past French Navy activities, seawater and mussels were collected in Toulon Bay (NW Mediterranean Sea). Lead content and Pb stable isotope composition have evidenced the direct impact of sediment pollution stock on both the water column quality and the living organisms, through the specific Pb isotopic signature in these considered compartments. The history of pollution events including past and present contaminant dispersion in Toulon Bay were also demonstrated by historical records of Pb content and Pb isotope ratios in sediment profiles. The sediment resuspension events, as simulated by batch experiments, could be a major factor contributing to the high Pb mobility in the considered ecosystem. A survey of Pb concentrations in surface seawater at 40 stations has revealed poor seawater quality, affecting both the dissolved fraction and suspended particles and points to marina/harbors as additional diffuse sources of dissolved Pb.
Tipo:  Text
Idioma:  Inglês

Editor:  Amer Chemical Soc
Formato:  application/pdf
Fonte:  Environmental Science & Technology (0013-936X) (Amer Chemical Soc), 2015-10 , Vol. 49 , N. 19 , P. 11438-11448
Direitos:  2015 American Chemical Society


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