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Spatial-temporal trend and health implications of polycyclic aromatic hydrocarbons (PAHs) in resident oysters, South China Sea: A case study of Eastern Guangdong coast

文献类型： 外文期刊

作者： Yu, Zi-Ling 1 ; Lin, Qin 1 ; Gu, Yang-Guang 1 ; Ke, Chang-Liang 1 ; Sun, Run-Xia 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China

2.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Guangdong, Peoples R China

3.Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China

4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China

关键词： Polycyclic aromatic hydrocarbons; Oyster; Health risk; Eastern Guangdong coast

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

ISSN： 0025-326X

年卷期： 2016 年 110 卷 1 期

页码：

收录情况： SCI

摘要： Spatial and temporal distributions of polycyclic aromatic hydrocarbons (PAHs) were investigated in Eastern Guangdong coast, China. Total PAH concentrations in oysters ranged from 231 to 1178 ng/g with a mean concentration of 622 ng/g dry weight. Compared with other bays and estuaries, PAH levels in oysters were moderate. Spatial distribution of PAHs was site specific, with relatively high PAH concentrations observed in Zhelin Bay and Kaozhouyang Bay. Based on the Spearman test analysis, only PAH concentration in oysters from Jiazi Harbor showed a significant increasing trend (P<0.05). Three-ring PAHs were the most abundant, accounting for 54.2%-88.4% of total PAHs. Diagnostic ratios suggested that PAHs were derived mainly from petroleum origin. BaP and Sigma(4)PAH concentrations were well within the European Union limits (5 ng/g and 30 ng/g wet weight, respectively). The incremental lifetime cancer risks (ILCR) for PAHs were <10(-5), indicating that the adverse health risks associated with oyster consumption in this area were minimal. (C) 2016 Elsevier Ltd. All rights reserved.

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