Heavy metal distribution in recent sediments along the Tiete River basin (Sao Pauro, Brazil)

被引：14
|
作者：
Mortatti, Jefferson [1 ]
de Moraes, Graziela Meneghel [1 ]
Probst, Jean-Luc [2 ]
机构：
[1] Univ Sao Paulo, Ctr Energia Nucl Agr, Av Centenario 303, BR-13416970 Piracicaba, SP, Brazil
[2] ENSAT, INP, Ecolab, F-31216 Castanet Tolosan, France
来源：
GEOCHEMICAL JOURNAL | 2012年 / 46卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
heavy metals; Tiete River; sediments; geo-accumulation index; pollution; ELEMENTS; EVOLUTION; PB;
D O I：
10.2343/geochemj.1.0136
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The distribution of heavy metals in recent sediments deposited along the Tiete River, a highly polluted river in southeast region of Brazil was studied. Around the metropolitan area of Silo Paulo city (25 million people), the pollution is related to municipal wastes and industrial effluents with reinforced downstream by agricultural activities. The observed increase of heavy metal concentrations is particularly important for Zn in the upper basin and Cu, Co and Cr at mouth. Geo-accumulation index calculation, related to the regional background, showed that the sediments along the basin are seriously polluted by heavy metals of anthropogenic origin, mainly Cu, Co, Cr and Zn. Calculated index suggests medium to very strongly pollution.
引用
收藏
页码：13 / 19
页数：7
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