FABIO RODRIGO PIOVEZANI ROCHA
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Artigo IPEN-doc 24729 Metal and trace element assessments of bottom sediments from medium TietĆŖ River basin, Sao Paulo State, Brazil: part II2018 - FAVARO, D.I.T.; ROCHA, F.R.; ANGELINI, M.; HENRIQUES, H.R.A.; SOARES, J.S.; SILVA, P.S.C.; OLIVEIRA, S.M.B.Concentration of metals in 15 bottom sediment samples from TieteĖ River, a significantly polluted river, were assessed. Total and partial trace element concentrations were determined, and As, Cd, Cr, Cu, Ni and Zn were found above local reference values. These metals were also higher than the threshold effect level (TEL) in some sampling points and Zn was higher than probable effect level (PEL) oriented values in almost all sampling points. The most polluted points were identified from TieteĖ to Barra Bonita Counties. Regarding sediment quality, this river is still polluted and precautions to minimize environmental problems caused by toxic metals to biota and to human health are necessary.Artigo IPEN-doc 21296 NAA and XRF technique bottom sediment assessment for major and trace elements: Tiete River, SĆ£o Paulo state, Brazil2015 - ROCHA, F.R.; SILVA, P.S.C.; CASTRO, L.M.; BORDON, I.C.C.L.; OLIVEIRA, S.M.B.; FAVARO, D.I.T.