论文
论文标题: Legacy and Emerging Per- and Polyfluoroalkyl Substances Surveillance in Bufo gargarizans from Inlet Watersheds of Chaohu Lake, China: Tissue Distribution and Bioaccumulation Potential
作者: Shu, Yilin; Wang, Qi; Hong, Pei; Ruan, Yuefei; Lin, Huiju; Xu, Jing; Zhang, Huijuan; Deng, Shuaitao; Wu, Hailong; Chen, Lianguo; Leung, Kenneth Mei Yee
出版刊物: ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期: AUG 11
出版年份: 2023
卷/期:
DOI: 10.1021/acs.est.3c02660
论文摘要: Amphibiansare sensitive biomonitors of environmental pollutantsbut reports regarding per- and polyfluoroalkyl substances (PFAS),a class of synthetic organofluorine substances, are limited. In thisstudy, samples of water and Chinese toads (Bufo gargarizo) were collected in Chaohu Lake, China. Tissue-specific bioaccumulationcharacteristics of 39 PFAS, including 19 perfluoroalkyl acids (PFAAs),8 emerging PFAS, and 12 PFAA precursors, were investigated, and thelevels of some biochemical indicators were determined. The highestPFAS concentrations were found in the liver [215.97 ng/g dry weight(dw)] of Chinese toads, followed by gonads (135.42 ng/g dw) and intestine(114.08 ng/g dw). A similar tissue distribution profile was foundbetween legacy and emerging PFAS in the toads, and the occurrenceof two emerging PFAS, 2,3,3,3-tetrafluoro-2-propanoate (HFPO-DA) and6:2 hydrogen-substituted polyfluorooctane ether sulfonate (6:2 H-PFESA)in the amphibians were for the first time reported. Field-based bioaccumulationfactors of HFPO-DA were higher than perfluorooctanoic acid, indicatingthe higher bioaccumulation potential of this emerging PFAS than thelegacy C8 compound. Males had significantly higher gonad PFAS levelsthan females while estradiol levels in gonads increased with increasingconcentrations of certain PFAS (e.g., 6:2 H-PFESA), implying thatPFAS may trigger estrogenic effects in the toads, especially for maletoads. This is the first report onthe tissue-specific bioaccumulationcharacteristic of PFAS precursor (e.g., 6:2 FTS, FPrPA, and N-EtFOSAA)and certain emerging PFAS (e.g., HFPO-DA, PFECHS, and 6:2 H-PFESA)in amphibians. The accumulation of certain emerging PFAS in gonadaltissue may pose the risk of affecting sex hormone levels in amphibians.
== 实验室与学会 ==
  • == 实验室与学会 ==
  • 淡水生态与生物技术国家重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
  • 中国动物学会斑马鱼分会
  • 湖北省暨武汉动物学会
  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
  • == 平台建设 ==
  • “一带一路”海域赤潮数据库
  • 国家水生生物种质资源库
  • 国家斑马鱼资源中心
  • 中国科学院淡水藻种库
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  • 湿地生态系统观测研究野外站联盟
  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
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