Spatial variation, environmental assessment and source identification of heavy metals in sediments of the Yangtze River Estuary

被引：127

作者：

Wang, Jiawei ^{[1
]}

Liu, Ruimin ^{[1
]}

Zhang, Peipei ^{[1
]}

Yu, Wenwen ^{[1
]}

Shen, Zhenyao ^{[1
]}

Feng, Chenghong ^{[1
]}

机构：

[1] Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2014年 / 87卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Yangtze River Estuary; Heavy metals; Spatial variation; Environmental assessment; Source identification; PRINCIPAL COMPONENT ANALYSIS; SURFACE SEDIMENTS; RISK-ASSESSMENT; TRACE-METALS; MULTIVARIATE-ANALYSIS; STATISTICAL APPROACH; SOUTHWEST COAST; INTERTIDAL ZONE; TOXIC ELEMENTS; CONTAMINATION;

D O I：

10.1016/j.marpolbul.2014.07.048

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In order to analyze the spatial distribution patterns, pollution sources and ecological risks of heavy metals (As, Cd, Cr, Cu, Mn, Ni, Pb and Zn), 30 sediment samples were taken from in the Yangtze River Estuary (YRE). The results indicated that the contamination ranking of heavy metals was As > Cr > Cd > Ni > Mn > Pb > Zn > Cu. In the various areas, the pollution magnitude decreased as follows: adjacent sea > river mouth > inner-region. Compared to data published for other regions, the YRE data indicated that the sediment was not severely contaminated by heavy metals. In the YRE, natural and anthropogenic inputs dominated the distribution patterns of the heavy metals. Beyond that, the hydrodynamic conditions, such as the Taiwan warm current, coastal current and Yangtze diluted water, also caused distribution variations in the study areas. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：364 / 373

页数：10

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