Dianne Kopec, faculty fellow at the Mitchell Center, spoke to Undark about PFAS in marine life. Kopec explained that unlike pollutants such as PCBs or DDT, which primarily accumulate within fatty tissue, or mercury, which primarily accumulates in proteins and muscle tissue, PFASs concentrations are highest in the liver, blood and kidneys, and tend to read more Undark features Kopec in article about PFAS