Article pubs.acs.org/est
Chlorinated Polyfluoroalkyl Ether Sulfonic Acids in Marine Organisms from Bohai Sea, China: Occurrence, Temporal Variations, and Trophic Transfer Behavior Yanwei Liu,†,‡ Ting Ruan,†,‡ Yongfeng Lin,†,‡ Aifeng Liu,†,‡ Miao Yu,†,‡ Runzeng Liu,†,‡ Mei Meng,†,‡ Yawei Wang,†,‡ Jiyan Liu,*,†,‡ and Guibin Jiang†,‡ †
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China ‡ College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China S Supporting Information *
ABSTRACT: F-53B, the commercial product of chlorinated polyfluoroalkyl ether sulfonic acids (Cl-PFESAs), has been used in Chinese chrome plating industry for 30 years, and was recently identified in the environment, which caused great concerns. So far, limited investigations have been performed on their environmental occurrence, fate and impact. In this study, we demonstrated the wide occurrence of Cl-PFESAs and their trophic transfer behavior in marine organisms from Chinese Bohai Sea. 6:2 Cl-PFESA (80%). Concentrations below MDLs were not shown.
TLorganism = (δ15 Norganism − δ15 NChlamysfarreri)/3.8 + 2.0
significantly higher (
