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August 19, 2025Open Access

Contributions of unknown ionizable precursors for perfluoroalkyl acids in the air over a wastewater treatment plant and a landfill

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Authors

BWBin WangHarbin University of Science and TechnologyYYYiming YaoHarbin University of Science and TechnologyHSHongwen SunNankai University

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Implication

Analysis reveals significant contributions of unknown PFAS from landfills and wastewater treatment plants, highlighting environmental risks.

Key Points

  • Unknown PFAS contribute 46.4–58.4 mol% in air samples from WWTP and landfills, indicating a notable source of concern.
  • The predominant neutral PFAS found was 8:2 Fluorotelomer alcohol, while ultrashort-chain PFCAs were the main ionizable PFAS detected.
  • An optimized air sampler was deployed for collecting samples, which allowed for comparison between neutral and ionizable PFAS concentrations.
  • Findings suggest a pressing need to identify emerging PFAS profiles to assess environmental impacts more accurately.

Cite This Study

Wang et al. (2025) studied this question.

synapsesocial.com/papers/68af4766ad7bf08b1ead4896https://doi.org/10.21203/rs.3.rs-7284069/v1
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Fluorotelomer Acids are More Toxic than Perfluorinated Acids2007 · 150 citations
  2. 2Closing the Mass Balance on Fluorine on Papers and Textiles2017 · 186 citations
  3. 3Certain Perfluoroalkyl and Polyfluoroalkyl Substances Associated with Aqueous Film Forming Foam Are Widespread in Canadian Surface Waters2017 · 200 citations
  4. 4Biomagnification of perfluoroalkyl acids (PFAAs) in the food web of an urban river: assessment of the trophic transfer of targeted and unknown precursors and implications2019 · 100 citations