Heavy metal contamination in suspended solids of Changjiang River - environmental implications

被引：81

作者：

Song, Yinxian ^{[1
,2
]}

Ji, Junfeng ^{[1
]}

Mao, Changping ^{[1
]}

Yang, Zhongfang ^{[3
]}

Yuan, Xuyin ^{[4
]}

Ayoko, Godwin A. ^{[2
]}

Frost, Ray L. ^{[2
]}

机构：

[1] Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210093, Jiangsu Prov, Peoples R China

[2] Queensland Univ Technol, Chem Discipline, Fac Sci & Technol, Brisbane, Qld 4001, Australia

[3] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China

[4] Hohai Univ, Coll Environm & Engn, Nanjing 210098, Peoples R China

来源：

GEODERMA | 2010年 / 159卷 / 3-4期

关键词：

Sediment and suspended solid; Heavy metal pollution; Environmental implications; Chemometrics; JIANGSU PROVINCE; TRACE-METALS; SOIL; SEDIMENTS; GEOCHEMISTRY; POLLUTION; ESTUARY;

D O I：

10.1016/j.geoderma.2010.07.020

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Spatial and temporal changes of contamination of As, Cd, Co, Cr, Cu, Ni, Pb and Zn in sediment and suspended solid during dry and flood seasons were investigated in 75 locations along the Changjiang River basin. As and Cd had higher I-geo values both in sediment and suspended solid of Changjiang River. In a principal component analysis with Varimax rotation, the Panzhihua-Northeast Yunnan and Nanling mining areas were plotted out as the most important heavy metal contamination sources for Changjiang River. Poyang Lake region was contaminated strongly by heavy metals and a clear enrichment of heavy metals in suspended solid occurred in Three Gorges Reservoir. Comparing heavy metals in sediment and suspended solid from main channel and tributaries showed that in flood season, erosion of tributaries increased, and the contamination levels of heavy metals in tributaries were higher than in the main channel. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：286 / 295

页数：10