Cited by 679Per- and polyfluoroalkyl substances researchFluorine in Organic ChemistryToxic Organic Pollutants Impact

Worldwide Distribution of Novel Perfluoroether Carboxylic and Sulfonic Acids in Surface Water

Pan, Yitao, Zhang, Hongxia, Cui, Qianqian, Sheng, Nan, Yeung, Leo W. Y., Sun, Yan, Guo, Yong, Dai, Jiayin·2018·Environmental Science & Technology

Abstract

Driven by increasingly stringent restrictions on long-chain per- and polyfluoroalkyl substances (PFASs), novel fluorinated compounds have emerged on the market. Here we report on the occurrences of several perfluoroalkyl ether carboxylic and sulfonic acids (PFECAs and PFESAs), including hexafluoropropylene oxide dimer and trimer acids (HFPO-DA and HFPO-TA), ammonium 4,8-dioxa-3 H-perfluorononanoate (ADONA), chlorinated polyfluorinated ether sulfonic acid (6:2 Cl-PFESA), and its hydrogen-substituted analogue (6:2 H-PFESA) in surface waters from China ( n = 106), the United States ( n = 12), the United Kingdom ( n = 6), Sweden ( n = 10), Germany ( n = 14), The Netherlands ( n = 6), and Korea ( n = 6). Results showed that HFPO-DA, HFPO-TA, and 6:2 Cl-PFESA (median = 0.95, 0.21, and 0.31 ng/L, respectively) were frequently detected in all countries, indicating ubiquitous dispersal and distribution in global surface waters. The presence of 6:2 H-PFESA was widely detected in China (detection rate > 95%) but not in any other country. Only trace levels of ADONA (0.013-1.5 ng/L) were detected in the Rhine River flowing through Germany. The estimated total riverine mass discharges of HFPO-DA, HFPO-TA, and ΣPFESAs reached 2.6, 6.0, and 4.3 ton/year in five of the major river systems in China. Our results indicated that novel PFECAs and PFESAs might become global contaminants, and future investigations are warranted.

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Crossref · 10.1021/acs.est.8b00829

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Authors
Pan, Y., Zhang, H., Cui, Q., Sheng, N., Yeung, L. W. Y., Sun, Y., Guo, Y., & Dai, J.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Örebro University (SE)
Corresponding author
Dai, Jiayin
Venue
Environmental Science & Technology
Published
2018-05-11
Volume
52
Issue
14
Pages
7621-7629
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2801936321
Cited by
679
References
27
Citations by year
2026: 97 · 2025: 119 · 2024: 116 · 2023: 82 · 2022: 88 · 2021: 72 · 2020: 56 · 2019: 43 · 2018: 6
FWCI
23.15
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (21737004, 31320103915)
  • Chinese Academy of Sciences (XDB14040202)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Fluorine in Organic Chemistry
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
Keywords
HFPO-DA, surface water contamination, global distribution, Rhine River, China
MeSH terms
China, Environmental Monitoring, Fluorocarbons, Germany, United Kingdom, Netherlands, Sulfonic Acids, Sweden, Water Pollutants, Chemical, Republic of Korea

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