The US Environmental Protection Agency has finalized stringent new regulations on levels of six perfluoroalkyl and polyfluoroalkyl substances, or PFAS, in public water systems. However, the regulations do not apply to all drinking water in the United States and will take several years to go into full effect, leaving many citizens still at risk, critics say. Used since the 1950s to make consumer products nonstick, oil- and water-repellent and resistant to temperature change, PFAS chemicals have... Read this story
