Spatial distribution and ecological risk of polychlorinated biphenyls in sediments from Qinzhou Bay, Beibu Gulf of South China

被引：44

作者：

Zhang, Jinlian ^{[1
]}

Li, Yuanyuan ^{[1
]}

Wang, Yinghui ^{[1
]}

Zhang, Yuanyuan ^{[1
]}

Zhang, Dan ^{[1
]}

Zhang, Ruijie ^{[1
,2
]}

Li, Jun ^{[2
]}

Zhang, Gan ^{[2
]}

机构：

[1] Guangxi Univ, Sch Environm Studies, Nanning 530004, Peoples R China

[2] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2014年 / 80卷 / 1-2期

关键词：

Polychlorinated biphenyls; Surface sediment; Qinzhou Bay; Beibu Gulf of South China; PERSISTENT ORGANIC POLLUTANTS; PEARL RIVER DELTA; ORGANOCHLORINE PESTICIDES; SURFACE SEDIMENTS; DAYA-BAY; MARINE; HYDROCARBONS; SEA; CONGENERS; SOILS;

D O I：

10.1016/j.marpolbul.2013.12.028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The residual level of polychlorinated biphenyls (PCBs) was determined in the surface sediments collected from the Qinzhou Bay, Beibu Gulf of Southern China. The results showed that the total concentration of PCBs ranged from 1.62 to 62.63 ng/g dry wt, with a mean of 9.87 ng/g dry wt. Generally, the average PCBs concentrations in three sample groups descended in this order: inner bay > outer bay > rivers. On a mean level, with respect to the PCBs homologue profiles, the analysis suggested that tetrachlorinated biphenyls was the most abundant PCB, followed by hexachlorinated biphenyls, pentachlorinated biphenyls. PCB profiles varied according to the nature of the site and its proximity to the sources. PCA with multiple linear regression analysis indicated that Aroclor products contributed to the PCBs in Qinzhou Bay. Risk assessments conducted on the levels indicated that PCBs in sediments of Qinzhou Bay posed no significant risk to human health. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：338 / 343

页数：6

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