Heavy metal contamination in surface sediments of Yangtze River intertidal zone: An assessment from different indexes

被引：524

作者：

Zhang, Weiguo ^{[2
]}

Feng, Huan ^{[1
]}

Chang, Jinna ^{[2
]}

Qu, Jianguo ^{[2
]}

Xie, Hongxia ^{[2
]}

Yu, Lizhong ^{[2
]}

机构：

[1] Montclair State Univ, Dept Earth & Environm Studies, Montclair, NJ 07043 USA

[2] E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China

来源：

ENVIRONMENTAL POLLUTION | 2009年 / 157卷 / 05期

基金：

中国国家自然科学基金; 芬兰科学院;

关键词：

Yangtze River estuary; Intertidal zone sediments; Heavy metals; Contamination; Sediment quality criteria; ESTUARINE SEDIMENTS; COASTAL SEDIMENTS; TRACE-METALS; YELLOW SEA; GRAIN-SIZE; CHINA; NORMALIZATION; BAY; GULF; ACCUMULATION;

D O I：

10.1016/j.envpol.2009.01.007

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Surface sediments (0-5 cm) from 59 stations within the Yangtze River intertidal zone (YRIZ) were sampled for metal contamination analysis in April and August 2005. The concentrations ranged (in mg kg(-1) dry weight): Al, 40,803-97,213; Fe, 20,538-49,627; Cd, 0.12-0.75; Cr, 36.9-173: Cu, 6.87-49.7; Mn, 413-1,112; Ni, 17.6-48.0; Pb, 18.3-44.1: and Zn, 47.6-154; respectively. Among the 139 sampling stations, enrichment factors (EF) indicate enrichment of Cd (52 stations), Cr (54 stations), Cu (5 stations), Ni (26 stations), Pb (5 stations) and Zn (5 stations). Geoaccumulation indexes (I-geo) also suggest individual metal contamination in localized areas. This study indicates that Cd, Cr and Ni enrichment in the YRIZ sediment is widespread whereas Cu, Mn, Pb and Zn enrichment is localized or nonexistent. Factor and cluster analyses indicate that Cd is associated with total organic carbon whereas Cu, Cr, Ni, Pb and Zn have a close association with Mn. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1533 / 1543

页数：11