More than 150 scientists from around the world with expertise in per- and polyfluoroalkyl substances (PFAS) have co-signed a new statement urging governmental bodies to adopt a science-based “at least one fully fluorinated carbon atom” definition of PFAS that includes fluorinated (f)-gases and trifluoroacetic acid (TFA), an atmospheric byproduct of certain f-gases.
Public Employees for Environmental Responsibility (PEER) has sued the EPA to gain better clarity on how it developed its PFAS definition. To date, the suit has revealed that the EPA “didn’t really have a well-developed scientific justification for choosing any of the definitions it has thrown out there,” said Tim Whitehouse, Executive Director for PEER.