Target, Nontarget, and Suspect Screening and Temporal Trends of Per- and Polyfluoroalkyl Substances in Marine Mammals from the South China Sea

Qi Wang; Yuefei Ruan; Linjie Jin; Xiaohua Zhang; Jing Li; Yuhe He; Si Wei; James C.W. Lam; Paul K.S. Lam

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Target, Nontarget, and Suspect Screening and Temporal Trends of Per- and Polyfluoroalkyl Substances in Marine Mammals from the South China Sea

机译：南海海洋哺乳动物中的靶向，非甲醛和怀疑筛查和时间趋势

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Per- and polyfluoroalkyl substances (PFASs) have been manufactured and widely used for over 60 years. Currently, there are thousands of marketed PFASs, but only dozens of them are routinely monitored. This work involved target, nontarget, and suspect screening of PFASs in the liver of Indo-Pacific humpback dolphin (Sousa chinensis) and finless porpoise (Neophocaena phocaenoides), two resident marine mammals in the South China Sea, stranded between 2012 and 2018. Among the 21 target PFASs, perfluorooctane sulfonate and 6:2 chlorinated polyfluoroalkyl ether sulfonate (6:2 Cl-PFESA) predominated in the samples, accounting for 46 and 30% of the total PFASs, respectively. Significantly higher total target PFAS concentrations (p ＜ 0.05) were found in dolphin liver samples [3.23 × 10~3 ± 2.63 × 10~3 ng/g dry weight (dw)] than in porpoise liver samples (2.63 × 10~3 ± 1.10 × 10~3 ng/g dw). Significant increasing temporal trends (p ＜ 0.05) were found in the concentrations of two emerging PFASs, perfluoroethylcyclohexane sulfonate and 2,3,3,3-tetrafluoro-2- propanoate in porpoises, indicating increasing pollution by these emerging PFASs. Forty-four PFASs from 9 classes were additionally identified by nontarget and suspect screening, among which 15 compounds were reported for the first time in marine mammals. A primary risk assessment showed that the emerging PFAS 6:2 Cl-PFESA could have possible adverse effects in terms of reproductive injury potential on most of the investigated cetaceans.

机译：经过和多氟烷基物质（PFASS）已经制造并广泛使用60多年。目前，有数千个营销的PFASS，但只有几十个是经常监测的。这项工作涉及目标，Nontarget和怀疑在印度 - 太平洋驼背海豚（Sousa Chinensis）肝脏中的PFASS筛查（Neophocaena植物弓形虫），南海的两名常驻海洋哺乳动物，在2012年和2018年间搁浅。中间在样品中占主导地位的21个靶PFASS，全氟辛烷磺酸盐和6：2氯化聚氟烷基醚磺酸盐（6：2 CL-PFESA），分别占总PFASS的46％和30％。在海豚肝脏样品中发现了显着较高的总靶标PFA浓度（P <0.05）[3.23×10〜3±2.63×10〜3 ng / g干重（DW）]比Porpoise肝脏样品（2.63×10〜3±2.63×10〜3± 1.10×10〜3 ng / g dw）。在PORPOIS中浓度在两个出现的PFASS，全氟乙基环己烷磺酸盐和2,3,3,3-四氟-2-丙二醛中发现显着增加的时间趋势（P <0.05），表明这些新出现的PFASS的污染增加。 Nontarget和怀疑筛查另外鉴定来自9类的四十四个PFASS，其中筛选在海洋哺乳动物中首次报告15种化合物。主要风险评估表明，新兴PFAS 6：2 CL-PFESA可能在大多数研究的鲸类潜力方面具有可能的不利影响。

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《Environmental Science & Technology》 |2021年第2期|1045-1056|共12页
作者
Qi Wang; Yuefei Ruan; Linjie Jin; Xiaohua Zhang; Jing Li; Yuhe He; Si Wei; James C.W. Lam; Paul K.S. Lam;
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作者单位

Department of Chemistry State Key Laboratory of Marine Pollution (SKLMP) City University of Hong Kong Kowloon Hong Kong SAR China;

Research Centre for the Oceans and Human Health City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 China;

Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) Kowloon Hong Kong SAR China Research Centre for the Oceans and Human Health City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 China;

Department of Chemistry;

State Key Laboratory of Marine Pollution (SKLMP) City University of Hong Kong Kowloon Hong Kong SAR China;

Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) Kowloon Hong Kong SAR China;

Department of Science and Environmental Studies The Education University of Hong Kong New Territories Hong Kong SAR China;

Department of Chemistry State Key Laboratory of Marine Pollution (SKLMP) City University of Hong Kong Kowloon Hong Kong SAR China;

School of Energy and Environment City University of Hong Kong Kowloon Hong Kong SAR China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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Target, Nontarget, and Suspect Screening and Temporal Trends of Per- and Polyfluoroalkyl Substances in Marine Mammals from the South China Sea

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