New research aimed at identifying which US neighborhoods face increased exposure to toxic PFAS “forever chemicals” found those living near “superfund” sites and other major industrial polluters, or in areas with limited access to fresh food, generally have higher levels of the dangerous compounds in their blood. The study looked at hundreds of people living in southern California and found those who do not live within a half mile of a grocery store have 14% higher levels of PFOA and PFOS – two common PFAS compounds – in their blood than those who do. … The study also found people who live in neighborhoods with water contaminated with PFAS have 70% higher blood levels of PFOS and PFOA, though there was no correlation among some other compounds.