Polycyclic aromatic hydrocarbons in surface sediments and marine organisms from the Daya Bay, South China

文献类型： 外文期刊

第一作者： Sun, Run-Xia

作者： Sun, Run-Xia;Lin, Qin;Ke, Chang-Liang;Du, Fei-Yan;Gu, Yang-Guang;Sun, Run-Xia;Lin, Qin;Ke, Chang-Liang;Du, Fei-Yan;Gu, Yang-Guang;Sun, Run-Xia;Lin, Qin;Ke, Chang-Liang;Du, Fei-Yan;Gu, Yang-Guang;Sun, Run-Xia;Luo, Xiao-Jun;Mai, Bi-Xian;Cao, Kun

作者机构：

关键词： PAHs;Daya Bay;Sediments;Marine organisms

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Polycyclic aromatic hydrocarbons (PAHs) were investigated in the marine ecosystem of the Daya Bay, South China. The PAH concentrations ranged from 340 to 710 ng/g dry weight in the sediments and from 110 to 520 ng/g wet weight in marine organisms, respectively. The dominant compounds were three- and four-ring PAHs in the sediments (53%-89%) and two- and three-ring PAHs in the marine species (67%-94%), respectively. PAHs mainly originated from both pyrolytic and petrogenic sources. Comparison with the effects-based sediment quality guideline values suggested that the ecological risk caused by the total PAHs was relatively low (less than 25% incidence of adverse effects) in the sedimentary environment. The median cancer risk level via seafood consumption (1.6 x 10(-5) for urban residents and 1.2 x 10(-5) for rural residents, respectively) was slightly higher than the maximum admissible level (10(-5)) set by US EPA, but lower than the priority risk level (10(-4)). (C) 2016 Elsevier Ltd. All rights reserved.

分类号： X

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