1. How to assess trace elements bioavailability for benthic organisms in lowly to moderately contaminated coastal sediments?
- Author
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Rigaud S, Garnier JM, Moreau X, De Jong-Moreau L, Mayot N, Chaurand P, and Radakovitch O
- Subjects
- Aquatic Organisms metabolism, Biological Availability, Ecosystem, Environmental Biomarkers, France, Metals, Heavy metabolism, Trace Elements metabolism, Water Pollutants, Chemical metabolism, Aquatic Organisms drug effects, Environmental Monitoring methods, Geologic Sediments chemistry, Metals, Heavy analysis, Trace Elements analysis, Water Pollutants, Chemical analysis
- Abstract
The bioavailability of trace elements (As, Cd, Co, Cr, Cu, Hg, Ni, Pb, Zn) in lowly to moderately contaminated coastal sediments from the Berre lagoon, France, was assessed by comparing their potentially bioavailable concentrations and bioaccumulated concentrations in the polychaete Alitta succinea. No linear correlations were observed contrarily to what is generally observed in similar works in areas with highly contaminated sediment. Correlations between trace and major elements (Fe, Ca, S, Mg, P, Al) in Alitta succinea tissues and their distribution in organism tissues show that, in such lowly to moderately contaminated sediments, biological variabilities should be considered. Normalization procedures allow to take into account these variabilities and to identify that sediment contamination is partly involved in the benthic ecosystem degradation of the Berre lagoon. Alitta succinea cannot be used as relevant bioindicator for Zn and Co bioavailability in sediment, since these elements are regulated by this organism., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Published
- 2019
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