Dissolved and bioavailable contaminants in the Seine river basin

Diffusive Gradient in Thin Films (DGT) and Semi-Permeable Membrane Devices (SPMDs) were deployed in the Seine river basin in order to assess labile metals and truly dissolved Polycyclic Aromatic Hydrocarbons. We show that the tools are reliable in aquatic environments to assess the speciation of dis...

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Bibliographic Details
Published in:The Science of the total environment 2007-04, Vol.375 (1), p.244-256
Main Authors: Tusseau-Vuillemin, Marie-Hélène, Gourlay, Catherine, Lorgeoux, Catherine, Mouchel, Jean-Marie, Buzier, Rémy, Gilbin, Rodolphe, Seidel, Jean-Luc, Elbaz-Poulichet, Françoise
Format: Article
Language:English
Subjects:
Bioavailability
Biological Availability
DGT
Environmental Monitoring - methods
Environmental Sciences
Eukaryota - growth & development
France
Freshwater
Metals
Models, Theoretical
Polycyclic aromatic hydrocarbons
Rivers - chemistry
Seine
Solubility
Speciation
SPMD
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
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Summary:Diffusive Gradient in Thin Films (DGT) and Semi-Permeable Membrane Devices (SPMDs) were deployed in the Seine river basin in order to assess labile metals and truly dissolved Polycyclic Aromatic Hydrocarbons. We show that the tools are reliable in aquatic environments to assess the speciation of dissolved contaminants and hence provide a good insight into the potential bioavailability of contaminants. The deployment of the DGT and SPMDs in contrasting environments in the Seine river basin allowed distinction to be made of availability of contaminants between headwater streams and much more impacted river reaches and an assessment of bioavailability. At the stations under urban influence, the impact of dissolved organic matter on both copper and PAHs bioavailability is less pronounced than at upstream stations, where humic substances dominate.
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2006.12.018