Data/hora: 05/06/2024 04:42:30

Provedor de dados: | 5
País: | France
Título: | Bioavailability of particulate metal to zebra mussels: Biodynamic modelling shows that assimilation efficiencies are site-specific
Autores: | Bourgeault, Adeline; Gourlay-france, Catherine; Priadi, Cindy; Ayrault, Sophie; Tusseau-vuillemin, Marie-helene.
Data: | 2011-12
Ano: | 2011
Palavras-chave: | Bioaccumulation; Active biomonitoring; Bioavailability of particulate metals; Assimilation efficiency; Chemical sequential extraction.
Resumo: | This study investigates the ability of the biodynamic model to predict the trophic bioaccumulation of cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni) and zinc (Zn) in a freshwater bivalve. Zebra mussels were transplanted to three sites along the Seine River (France) and collected monthly for 11 months. Measurements of the metal body burdens in mussels were compared with the predictions from the biodynamic model. The exchangeable fraction of metal particles did not account for the bioavailability of particulate metals, since it did not capture the differences between sites. The assimilation efficiency (AE) parameter is necessary to take into account biotic factors influencing particulate metal bioavailability. The biodynamic model, applied with AEs from the literature, overestimated the measured concentrations in zebra mussels, the extent of overestimation being site-specific. Therefore, an original methodology was proposed for in situ AE measurements for each site and metal. (C) 2011 Elsevier Ltd. All rights reserved.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00051/16218/14040.pdf

DOI:10.1016/j.envpol.2011.08.034

Editor: | Elsevier Sci Ltd
Relação: | http://archimer.ifremer.fr/doc/00051/16218/
Formato: | application/pdf
Fonte: | Environmental Pollution (0269-7491) (Elsevier Sci Ltd), 2011-12 , Vol. 159 , N. 12 , P. 3381-3389
Fonte: | 2011 Elsevier Ltd. All rights reserved.