A New OECD Definition for Per- and Polyfluoroalkyl Substances
The report presents a revised, broadly inclusive PFAS definition: “PFASs are defined as fluorinated substances that contain at least one fully fluorinated methyl or methylene carbon atom (without any H/Cl/Br/I atom attached to it), i.e., with a few noted exceptions, any chemical with at least a perfluorinated methyl group (−CF3) or a perfluorinated methylene group…