Metal concentrations in surface sediments of Paraíba do Sul River (Brazil) |
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| Authors: | M O Pereira C Calza M J Anjos R T Lopes F G Araújo |
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| Institution: | (1) Nuclear Instrumentation Laboratory, COPPE/UFRJ, P.O. Box 68509, Rio de Janeiro, Brazil;(2) Nuclear Instrumentation Laboratory, COPPE/UFRJ, P.O. Box 68509, Rio de Janeiro, Brazil;(3) Nuclear Instrumentation Laboratory, COPPE/UFRJ; Physics Institute, UERJ, P.O. Box 68509, Rio de Janeiro, Brazil; Rio de Janeiro Brazil;(4) Nuclear Instrumentation Laboratory, COPPE/UFRJ, P.O. Box 68509, Rio de Janeiro, Brazil;(5) Fish Ecology Laboratory, UFRRJ, Rio de Janeiro, Brazil |
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| Abstract: | Summary The Paraíba do Sul River is located in a strategic region between the most important urban and industrial centers of Brazil.
In the last years, an increase in the water pollution has been reported, caused by the untreated domestic sewerage of the
inhabitants, effluents discharged by various industries, mining activities and sand extraction from the riverbed. This work
used total reflection X-ray fluorescence with synchrotron radiation (SRTXRF) to determine metals in the bioavailable and residual
fractions from the surface sediments. The metals identified were Ti, Cr, Mn, Fe, Cu, Zn, Rb, Sr, Ba and Pb. |
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