The research team conducted target and non-target screening of PFASs in marine mammals in the South China Sea, stranded between 2012 and 2018. Significant increasing temporal trends were found in concentrations of some emerging PFASs. 44 PFASs were additionally identified by non-target screening, among which 15 compounds were reported for the first time in marine mammals. A primary risk assessment showed that 6:2 Cl-PFESA might pose adverse impact on reproduction of the marine mammals.

Wang, Q., Ruan, Y., Jin, L., Zhang, X., Li, J., He, Y., Wei, S., Lam, J., & Lam, P. (2021). Target, Nontarget, and Suspect Screening and Temporal Trends of Per- and Polyfluoroalkyl Substances in Marine Mammals from the South China Sea. Environmental science & technology, 55(2), 1045–1056. https://doi.org/10.1021/acs.est.0c06685