EPA Finds Adverse PFAS Effects At Low Levels, Setting Path For Strict Rules

EPA has found negative health effects from the two most studied per- and polyfluoroalkyl substances (PFAS) at “much lower levels of exposure” than previously believed, the agency says of draft scientific documents submitted to its Science Advisory Board (SAB), setting a path to develop strict drinking water rules for the two chemicals. In review documents supporting development of planned drinking water rules, EPA crafted oral reference doses (RfDs) -- the greatest amount EPA estimates an adult can ingest daily over...