Biomagnification and risk assessment of polychlorinated biphenyls in food web components from Zhoushan fishing ground, China

被引:14
作者
Zhou, Shanshan [1 ]
Zhu, Hongbin [1 ]
Huang, Shaorong [2 ]
Zhou, Jiayi [1 ]
Zhang, Shenwei [1 ]
Wang, Chanzong [1 ]
机构
[1] Zhejiang Univ Technol, Coll Environm, 18 Chaowang Load, Hangzhou 310014, Zhejiang, Peoples R China
[2] Environm Monitoring Stn Yuyao, Yuyao 315400, Peoples R China
基金
中国国家自然科学基金;
关键词
Polychlorinated biphenyls; Biomagnification; Human health risk; Zhoushan fishing ground; East China Sea; POLYBROMINATED DIPHENYL ETHERS; TROPHIC MAGNIFICATION FACTORS; PERSISTENT ORGANIC POLLUTANTS; YANGTZE-RIVER ESTUARY; BIOACCUMULATION BEHAVIOR; PARTITION-COEFFICIENTS; MARINE FISH; PCBS; LAKE; SEDIMENTS;
D O I
10.1016/j.marpolbul.2019.04.024
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Trophodynamics and risks of polychlorinated biphenyls (PCBs) in organisms from the Zhoushan fishing ground (ZFG), China were studied. Sigma(22)PCBs varied from 1.36 to 36.75 ng/g wet weight, which were far below the maximum residue levels allowed in fishery products. However, estimated daily intake and hazard ratio calculations present possible adverse effects due to PCB pollution. Significantly positive correlations appeared between wet-weighted concentrations of target chemicals and trophic levels (TLs) of the organisms, with trophic magnification factors (TMEs) from 1.15 to 9.72. The TMF values first increased with an increase of compound's K-OW values, and then decreased, with log K-OW around 7.0 as an inflection point. TL is suggested as the key factor controlling contaminant burden among the species for only PCBs 105, 138, 153, and 171. For the remaining PCBs, lipid content of the organism or metabolite capacity of the compound may be more important influence on their bioaccumulation.
引用
收藏
页码:613 / 619
页数:7
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