Assessment of heavy metal contamination in surface sediments of the west Guangdong coastal region, China

被引：87

作者：

Zhao, Guangming ^{[1
,2
,3
]}

Lu, Qingyuan ^{[4
]}

Ye, Siyuan ^{[1
,2
]}

Yuan, Hongming ^{[1
]}

Ding, Xigui ^{[1
]}

Wang, Jin ^{[1
]}

机构：

[1] China Geol Survey, Key Lab Coastal Wetlands Biogeosci, Qingdao 266071, Peoples R China

[2] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China

[3] Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China

[4] China Univ Geosci, Sch Water Resources & Environm Sci, Beijing 100083, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2016年 / 108卷 / 1-2期

关键词：

Heavy metals; Contamination assessment; Surface sediments; West Guangdong region; PEARL RIVER ESTUARY; NEAR-SHORE AREA; SOUTH CHINA; INTERTIDAL SEDIMENTS; POLLUTION ASSESSMENT; SPATIAL-DISTRIBUTION; TRACE-METAL; VERTICAL-DISTRIBUTION; SHANDONG PENINSULA; CONTINENTAL-CRUST;

D O I：

10.1016/j.marpolbul.2016.04.057

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Heavy metals (As, Cd, Cr, Cu, Hg, Pb, Zn), organic carbon and grain size of 237 surface sediment samples and one sediment core, taken from the west Guangdong coastal region in January 2008, were analyzed to evaluate the spatial distribution and pollution status. Results show that the ranges of the measured heavy metal concentrations in sediments are as follows: 8.33-39.49 mg/kg for As, 0.1-1.49 mg/kg for Cd, 33-108 mg/kg for Cr, 11.5-78.8 mg/kg for Cu, 0.04-0.26 mg/kg for Hg, 21-73 mg/kg for Pb, 56-248 mg/kg for Zn. The heavy metal enrichment is closely associated with Corg and grain size. Both the metal enrichment factor and geoaccumulation index indicate that there was no detected pollution on metals As, Cr, Cu, Pb in our study area and a slight to moderate contamination of Cd, Hg and Zn. However, As, Cr and Cu have showed a certain risk. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：268 / 274

页数：7

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