Distribution, sources, and ecological risk assessment of SVOCs in surface sediments from Guan River Estuary, China

被引：0
作者：
Xinran He
Xiaojuan Song
Yong Pang
Yiping Li
Binlin Chen
Zhihua Feng
机构：
[1] Hohai University,College of Environment
[2] Lianyungang Environmental Monitoring Central Station,College of Marine Science & Technology
[3] Lianyungang Environmental Protection Bureau,undefined
[4] Huaihai Institute of Technology,undefined
来源：
Environmental Monitoring and Assessment | 2014年 / 186卷
关键词：
SVOCs; Surface sediment; Ecological risk; Sediment quality guidelines; Molecular ratios; Guan River Estuary;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The contamination of semi-volatile organic compounds (SVOCs) in the surface sediments of the Guan River Estuary, China was fully investigated. Total concentrations of 56 species of SVOCs ranged from 132 to 274 ng/g with an average of 186 ng/g (dry weight). Polycyclic aromatic hydrocarbon (PAH) concentrations were positively correlated with clay content and negatively correlated with sediment grain size. Source identification indicated that PAHs originated mainly from pyrolytic sources. However, intense ship traffic in the estuary may provide sources of petrogenic PAHs. Organochlorine pesticides (OCPs) mainly originated from direct input of dichlorodiphenyltrichloroethanes (DDTs) during some industrial processes. The SVOC concentrations were also compared with International Sediments Quality Guidelines and Sediments Quality Criteria, and the results indicated that negative biological impacts may originate from high concentrations of FLO, p,p′-DDE, and total DDTs.
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页码：4001 / 4012
页数：11
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