US finally set for nationwide regulation of PFAS in drinking water
EPA proposes standards for six PFAS compounds, and four will have limits based on cumulative effects
The US Environmental Protection Agency (EPA) has proposed the first-ever, long-awaited nationwide drinking water standards in America for six members of a controversial class of chemicals known as per- and polyfluoroalkyl substances (PFAS). The agency anticipates finalising the regulation by the end of the year.
PFAS chemicals have unique properties that confer oil, grease and water repellence as well as resistance to high temperatures, which have led them to be used in the manufacture of household items like non-stick cookware, raincoats, as well as in furniture as fabric protectors. But they do not degrade in the environment, are highly mobile and bioaccumulate.