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Distribution of silver in mussels and oysters along the French coasts: Data from the national monitoring program ArchiMer
Chiffoleau, Jean-francois; Auger, Dominique; Roux, Nathalie; Rozuel, Emmanuelle; Santini, Anne.
Distribution and behavior of many trace elements in the aquatic environment has been well characterized, but little is known about silver (Ag) concentrations in coastal waters, even though this element ranks among the most toxic to marine invertebrates (Calabrese et al., 1977 ; Fisher and Hook, 1997 ; Webb and Wood, 1998). Studies conducted by Flegal et al. (1995), River-Duarte et al. (1999), and Ndung'u et al. (2001), provided the first valuable data on Ag distribution in the oceanic environment, indicating that this element is found in very low concentrations in the dissolved phase. However, although silver concentrations in coastal waters do not reach the nanomolar range (Smith and Flegal, 1993 ; Squire et al., 2002), formation of a stable chloro...
Tipo: Text Palavras-chave: Mollusks; Coastal water; Silver; Monitoring.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-2553.pdf
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Nickel and vanadium contamination of benthic invertebrates following the "Erika" wreck ArchiMer
Chiffoleau, Jean-francois; Chauvaud, Laurent; Amouroux, David; Barats, Aurélie; Dufour, Aurélie; Pecheyran, Christophe; Roux, Nathalie.
Levels of nickel and vanadium, trace metals found in high concentration in the oil spilled from the "Erika" tanker off Brittany (France) in December 1999 (41 +/- 1 and 87 +/- 3 mg kg(-1) respectively), have been monitored over a one-year period following this accidental event in several benthic invertebrates. Ni and V in mussels (Mytilus edulis) and oysters (Crassostrea gigas) soft tissues were analysed twice a month by graphite furnace atomic absorption spectrometry and a scallop (Pecten maximus) shell daily growth bands were sampled every three bands by laser ablation and analysed by ICP-MS for these two contaminants. Survey data for mollusc tissues were compared with reference data arising from the national monitoring database. Ni concentrations in...
Tipo: Text Palavras-chave: Monitoring; Scallop shell; Oyster; Mussel; Vanadium; Nickel; Oil spill.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-402.pdf
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