Organophosphate Flame Retardants and Perfluoroalkyl Substances in Drinking Water Treatment Plants from Korea: Occurrence and Human Exposure.

ABSTRACT: In this study, the concentrations of organophosphate flame retardants (OPFR) and perfluoroalkyl substances (PFAS) were investigated in raw water and treated water samples obtained from 18 drinking water treatment plants (DWTPs). The ∑₁₃OPFR concentrations in the treated water samples (29.5-122 ng/L; median 47.5 ng/L) were lower than those in the raw water (37.7-231 ng/L; median 98.1 ng/L), which indicated the positive removal rates (0-80%) of ∑₁₃OPFR in the DWTPs. The removal efficiencies of ∑₂₇PFAS in the DWTPs ranged from -200% to 50%, with the ∑₂₇PFAS concentrations in the raw water (4.15-154 ng/L; median 32.0 ng/L) being similar to or lower than those in the treated water (4.74-116 ng/L; median 42.2 ng/L). Among OPFR, tris(chloroisopropyl) ph

SUBMITTER: Sim W 

PROVIDER: S-EPMC7967649 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature