Short-chain PFASs dominance and their environmental transport dynamics in urban water systems: Insights from multimedia transport analysis and human exposure risk

• The first comprehensive assessment of PFAS environmental fate across the entire urban water system (UWS) in an industrial zone. • Short-chain PFCAs, the dominant monomers, are transported from pollution sources to humans through the UWS. • 12.29 kg of Σ 15 PFAS is discharged annually via wastewater effluent and residual sludge from WWTPs. • Advanced modeling identifies TN, Na + , Cl − , Li, Ni, Co, and Mo as key drivers of PFAS behavior. • FFAS concentrations in rivers exhibit exponential decay with increasing distance from WWTP discharge points. The increasing prevalence of short-chain per- and polyfluoroalkyl substances (PFASs) poses significant challenges for urban water systems (UWS) due to their…

• KR
  Key Research and Development Program of Heilongjiang

  Award: 2023ZX02B03
• CR
  Chinese Research Academy of Environmental Sciences