Per- and polyfluoroalkyl substances (PFAS) profiles in primary and secondary landfill leachates: Indications of transformation, liner interactions, and other PFAS sources.

ABSTRACT: Per- and polyfluoroalkyl substances (PFAS) are a growing concern due to their persistence, bioaccumulation potential, and continued widespread use in consumer products. PFAS disposed of in landfills are emitted to the environment via leachate, which drives a need to better understand PFAS behavior in landfills and landfill liner systems. This study examines PFAS concentrations in primary and secondary leachate from three municipal solid waste landfills utilizing double HDPE geomembrane liner systems. Samples were also analyzed for physical-chemical constituents such as chloride, ammonia, chemical oxygen demand, and metals. On average, physical-chemical parameter concentrations were significantly lower in the secondary compared to the primary leachate, although PFAS concentrations were not

SUBMITTER: Robey NM 

PROVIDER: S-EPMC12506799 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature