Abstract
In the present study, the BCR (Community Bureau of Reference) sequential procedure has been applied to determine the zinc partition in sediments taken from a river situated in the Southwest of Romania, in a region subject of intense mining activities. The sampling was performed during three sampling expeditions, organized in the spring, summer, and autumn, 2007. The zinc concentration in different fractions was normalized, its concentration being related to the concentrations of some metals (such as Al or Fe) that are naturally present in sediments. The zinc-contaminated sediments from the investigated area have been evaluated by means of combining the analysis data from the BCR sequential extraction with the normalization to the Al content. The most important zinc collector in the samples taken during the three sampling expeditions is the easily soluble fraction, next being amorphous iron and manganese hydrated oxides fraction, followed by organic matter fraction.
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Vasile, G.D., Nicolau, M. & Vlădescu, L. Zinc speciation in sediments from a polluted river, as an estimate of its bioaccesibility. Environ Monit Assess 160, 71–81 (2010). https://doi.org/10.1007/s10661-008-0658-y
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DOI: https://doi.org/10.1007/s10661-008-0658-y