EPA Seeks To Categorize PFAS Into Groups But Faces Testing Hurdles

The top political appointee in EPA’s research office says the agency is studying ways to categorize per- and polyfluoroalkyl substances (PFAS) into groups for assessment and risk management, echoing an approach that industry representatives have proposed as an alternative to environmentalists’ call for regulating the substances in a single class. But a top official in EPA’s chemical characterization division says the testing is proving difficult in some cases though officials expect to eventually produce a series of results that could...