Read the full article by Cheryl Hogue (Chemical & Engineering News)

“President Joe Biden is promising to address tap water tainted with per- and polyfluoroalkyl substances (PFAS). These toxic synthetic substances, which don’t break down in the environment, are increasingly being detected in rivers and aquifers that supply drinking water across the US.

A handful of states have limits on certain PFAS in drinking water, but no national standards exist.

On former president Donald J. Trump’s last full day in office, the Environmental Protection Agency took a first step toward Biden’s goal of establishing enforceable, health-based limits for two substances in the PFAS family that are found widely in drinking water—perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). They were formerly used as ingredients in foams used to douse fuel fires. PFOA and PFOS are often found in groundwater near military bases, airports, and firefighter training facilities…”