作者: JEFFERSON MORTATTI , GRAZIELA MENEGHEL DE MORAES , JEAN-LUC PROBST
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摘要: The distribution of heavy metals in recent sediments deposited along the Tiete River, a highly polluted river southeast region Brazil was studied. Around metropolitan area Sao Paulo city (25 million people), pollution is related to municipal wastes and industrial effluents with reinforced downstream by agricultural activities. observed increase metal concentrations is particularly important for Zn upper basin Cu, Co Cr at mouth. Geo-accumulation index calculation, related regional background, showed that are seriously anthropogenic origin, mainly Co, Zn. Calculated suggests medium to very strongly pollution.