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Elevated concentrations of perfluorohexanesulfonate and other per- and polyfluoroalkyl substances in Baiyangdian Lake (China): Source characterization and exposure assessment.
Environ Pollut. 2018 Oct; 241:684-691.EP

Abstract

Novel 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFESA) and legacy PFASs, such as perfluorohexane sulfonate (PFHxS), have been used to replace perfluorooctane sulfonate (PFOS), a known persistent organic pollutant. Thus, it is critical to understand these PFOS alternatives regarding their sources and concentrations in the natural environment. In this study, 41 surface water samples as well as edible aquatic organisms were collected from Baiyangdian Lake, the largest freshwater lake in Hebei Province, China. Perfluorooctanoate acid (PFOA) and PFHxS were the predominant PFASs detected in the surface water, reaching concentrations of 8 397.23 ng/L and 1 478.03 ng/L, respectively, with PFHxS accounting for the greatest proportion (∼80.00%) in most water samples. PFHxS (mean: 87.53 ng/g) and PFOS (mean: 35.94 ng/g) were also the most prevalent compounds detected in aquatic organisms. Estimated daily intake (EDI) values of PFOS (16.56 ng/kg bw/d) and PFHxS (16.11 ng/kg bw/d) via aquatic food and drinking water were the highest among PFASs, indicating potential exposure risks to residents. In addition, fish product consumption was the important exposure pathway for residents to PFOA, PFHxS, PFOS, and 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFESA). This study reports on the highest PFHxS levels ever recorded in surface water, suggesting that further quantification of PFHxS in human serum and assessment of its health risks to local residents are warranted and critical.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Cui Q
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
Pan Y
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
Zhang H
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
Sheng N
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
Dai J
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China. Electronic address: daijy@ioz.ac.cn.

MeSH

AlkanesulfonatesAlkanesulfonic AcidsCaprylatesChinaEnvironmental MonitoringFluorocarbonsHumansLakesSulfonic AcidsWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29902751

Citation

Cui, Qianqian, et al. "Elevated Concentrations of Perfluorohexanesulfonate and Other Per- and Polyfluoroalkyl Substances in Baiyangdian Lake (China): Source Characterization and Exposure Assessment." Environmental Pollution (Barking, Essex : 1987), vol. 241, 2018, pp. 684-691.
Cui Q, Pan Y, Zhang H, et al. Elevated concentrations of perfluorohexanesulfonate and other per- and polyfluoroalkyl substances in Baiyangdian Lake (China): Source characterization and exposure assessment. Environ Pollut. 2018;241:684-691.
Cui, Q., Pan, Y., Zhang, H., Sheng, N., & Dai, J. (2018). Elevated concentrations of perfluorohexanesulfonate and other per- and polyfluoroalkyl substances in Baiyangdian Lake (China): Source characterization and exposure assessment. Environmental Pollution (Barking, Essex : 1987), 241, 684-691. https://doi.org/10.1016/j.envpol.2018.05.099
Cui Q, et al. Elevated Concentrations of Perfluorohexanesulfonate and Other Per- and Polyfluoroalkyl Substances in Baiyangdian Lake (China): Source Characterization and Exposure Assessment. Environ Pollut. 2018;241:684-691. PubMed PMID: 29902751.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Elevated concentrations of perfluorohexanesulfonate and other per- and polyfluoroalkyl substances in Baiyangdian Lake (China): Source characterization and exposure assessment. AU - Cui,Qianqian, AU - Pan,Yitao, AU - Zhang,Hongxia, AU - Sheng,Nan, AU - Dai,Jiayin, Y1 - 2018/06/11/ PY - 2018/02/16/received PY - 2018/05/29/revised PY - 2018/05/31/accepted PY - 2018/6/15/pubmed PY - 2018/9/28/medline PY - 2018/6/15/entrez KW - Aquatic products KW - Baiyangdian KW - Exposure risk KW - PFHxS KW - PFOA KW - Pollution sources SP - 684 EP - 691 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 241 N2 - Novel 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFESA) and legacy PFASs, such as perfluorohexane sulfonate (PFHxS), have been used to replace perfluorooctane sulfonate (PFOS), a known persistent organic pollutant. Thus, it is critical to understand these PFOS alternatives regarding their sources and concentrations in the natural environment. In this study, 41 surface water samples as well as edible aquatic organisms were collected from Baiyangdian Lake, the largest freshwater lake in Hebei Province, China. Perfluorooctanoate acid (PFOA) and PFHxS were the predominant PFASs detected in the surface water, reaching concentrations of 8 397.23 ng/L and 1 478.03 ng/L, respectively, with PFHxS accounting for the greatest proportion (∼80.00%) in most water samples. PFHxS (mean: 87.53 ng/g) and PFOS (mean: 35.94 ng/g) were also the most prevalent compounds detected in aquatic organisms. Estimated daily intake (EDI) values of PFOS (16.56 ng/kg bw/d) and PFHxS (16.11 ng/kg bw/d) via aquatic food and drinking water were the highest among PFASs, indicating potential exposure risks to residents. In addition, fish product consumption was the important exposure pathway for residents to PFOA, PFHxS, PFOS, and 6:2 chlorinated polyfluorinated ether sulfonate (6:2 Cl-PFESA). This study reports on the highest PFHxS levels ever recorded in surface water, suggesting that further quantification of PFHxS in human serum and assessment of its health risks to local residents are warranted and critical. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/29902751/Elevated_concentrations_of_perfluorohexanesulfonate_and_other_per__and_polyfluoroalkyl_substances_in_Baiyangdian_Lake__China_:_Source_characterization_and_exposure_assessment_ DB - PRIME DP - Unbound Medicine ER -