The impact of precursors on aquatic exposure assessment for PFAS: Insights from bioaccumulation modeling.

ABSTRACT: Risk assessment for per- and polyfluoroalkyl substances (PFAS) is complicated by the fact that PFAS include several thousand compounds. Although new analytical methods have increased the number that can be identified in environmental samples, a significant fraction of them remain uncharacterized. Perfluorooctane sulfonate (PFOS) is the PFAS compound of primary interest when evaluating risks to humans and wildlife owing to the consumption of aquatic organisms. The exposure assessment for PFOS is complicated by the presence of PFOS precursors and their transformation, which can occur both in the environment and within organisms. Thus, the PFOS to which wildlife or people are exposed may consist of PFOS that was discharged directly into the environment and/or other PFOS precursors that were t

SUBMITTER: Glaser D 

PROVIDER: S-EPMC8359936 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature