Scientists warn against attempts to change definition of ‘forever chemicals’

Move to narrow classification of Pfas and weaken regulation is ‘politically and/or economically motivated’ A group of 20 internationally renowned scientists have issued a strong warning against attempts to narrow the definition of “forever chemicals” in what they describe as a politically or economically motivated effort to weaken regulation of the potentially harmful chemicals. Per- and polyfluoroalkyl substances (Pfas) are a large group of synthetic chemicals used for their oil-, water- and stain-resistant properties in a range of consumer and industrial products from waterproof clothing and non-stick cookware to firefighting foams and electronics.