Tissue Distribution and Maternal Transfer of Poly- and Perfluorinated Compounds in Chinese Sturgeon (Acipenser sinensis): Implications for Reproductive Risk
文献类型： 外文期刊
作者： Peng, Hui 2 ; Wei, Qiwei 1 ; Wan, Yi 3 ; Giesy, John P. 3 ; Li, Luoxin 1 ; Hu, Jianying 2 ;
作者机构： 1.Chinese Acad Fisheries Sci, Yangtze River Fisheries Res Inst, Ministr Agr China, Lab Freshwater Biodivers Conservat & Utilizat, Jinzhou 434000, Hubei, Peoples R China
2.Peking Univ, Lab Earth Surface Proc, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
3.Univ Saskatchewan, Dept Vet Bionied Sci, Saskatoon, SK S7J 5B3, Canada
4.Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK S7J 5B3, Canada
5.Michigan State Univ, Dept Zool, Ctr Integrat Toxicol, E Lansing, MI 48824 USA
期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：9.028； 五年影响因子：9.922 ）
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收录情况： SCI
摘要： It is critical to investigate the tissue distribution and maternal transfer of poly- and perfluorinated compounds (PFCs) in wild fish for assessing potential effects on ecosystems. Concentrations of 23 PFCs in nine organs and egg were measured in 16 17-to 25-year-old female Chinese sturgeon (Acipenser sinensis, an anadromous fish), that died during propagation. Three polyfluorinated amides were detected in stomach, intestine, and gills and 7:3 FTCA was specifically accumulated in liver. The greatest total concentration of PFCs in egg was 35.1 ± 10.4 ng/g ww and was predominated by perfluorooctane sulfonate (PF0S) and perfluorotridecanoate acid (PFTriDA). The longer-chain C_(11)—C_(14) and C_(16) perfluorinated carboxylates were more accumulated in Chinese sturgeon than PF0S, partly due to the increasing trends of PFCAs with fish age. Maternal transfer ratios of PFCs expressed as ratios of concentrations in the egg to those in the liver ranged from 0.79 (perfluorooctanoate) to 5.5 (PFTriDA), depending on their carbon chain lengths or protein-water coefficients. The PF0S equivalent of PFC mixtures, calculated by multiplying the relative potency factor of each PFC to PF0S by the corresponding concentration, ranged from 90.6 to 262 ng/g. The hazard quotient was 0.20, implying potential reproductive effects of PFCs on Chinese sturgeon.
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