Distribution, potential source and ecotoxicological risk of polychlorinated biphenyls and polybrominated diphenyl ethers in the surface water of the Three Gorges Dam region of the Yangtze River, China

被引：31

作者：

Ge, Jing ^{[1
]}

Yun, Xiaoyan ^{[1
]}

Liu, Minxia ^{[1
]}

Yang, Yuyi ^{[1
]}

Zhang, Miaomiao ^{[1
]}

Wang, Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China

来源：

ECOTOXICOLOGY | 2014年 / 23卷 / 06期

关键词：

PCBs; PBDEs; Three Gorges Dam (TGD); Yangtze River; Potential sources; Eco-toxicological risk; BROMINATED FLAME RETARDANTS; OXIDATIVE STATUS; PBDES; EXPOSURE; PCBS; SEDIMENTS; TRANSPORT; ESTUARY; SEA; AIR;

D O I：

10.1007/s10646-014-1241-7

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Distributions, potential sources and ecotoxicological risks of PCBs and PBDEs in surface water of the Three Gorges Dam (TGD) region (Yangtze River, China) were investigated. Samples were collected from 18 sites from upstream (UTGD) and downstream (DTGD) of the TGD. Thirty-two PCBs and ten PBDEs were analyzed. I PCBs pound from the UTGD and DTGD ranged from 10.6 to 26.1 and 1.7 to 29.8 ng L-1, respectively. I PBDEs pound from the UTGD and DTGD ranged from 2.0 to 17.6 and 0.8 to 11.1 ng L-1, respectively. The total concentrations of PCBs and PBDEs showed a declining trend from the UTGD to DTGD. Independent-samples t test analysis showed no statistical significance of I PCBs pound and I PBDEs pound between the UTGD and DTGD samples. Principal component analysis indicated the difference of potential sources and levels of PCBs and PBDEs in the study area. The potential eco-toxicological risk of PCBs in surface water of the TGD region is very low, whereas special attention needs to be paid to PBDEs in the study area.

引用

收藏

页码：978 / 987

页数：10

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