Emission of Perfluoroalkyl Acids and Perfluoroalkyl Ether Carboxylic Acids to the Atmosphere from a Fluorochemical Industrial Park in China.

ABSTRACT: This study investigated the particle size distribution and atmospheric transport potential of perfluoroalkyl carboxylic acids (PFCAs) and certain perfluoroalkyl ether carboxylic acids (PFECAs) emitted from a mega fluoropolymer industrial park (FIP) in China. Ambient aerosols sampled in a residential area near the FIP were separated by a cascade impactor into five size fractions (<0.15 to 12.15 μm). Homologues of PFCAs (C5-C11) and five PFECAs were frequently detected in the samples (detection frequencies 40-100%), albeit not in all size fractions. Perfluorooctanoic acid (PFOA) exhibited the highest concentrations (6.5 to 2900 pg m^-3). A noticeable mass mode in the >1 μm size range was observed for PFCAs and PFECAs in the samples that were directly influenced by wind from the dir

SUBMITTER: Sha B 

PROVIDER: S-EPMC11984109 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature