Nearly Half of U.S. Tap Water May Contain Pfas—Synthetic ‘Forever Chemicals’ Linked to Serious Health Risks.

A 2023 U.S. Geological Survey study found that at least 45% of the nation’s tap water is estimated to have one or more types of per- and polyfluoroalkyl substances (PFAS). PFAS are used in various products like non-stick cookware and firefighting foams and are known for their persistence in the environment.

The study tested for 32 types of PFAS and revealed widespread contamination across both private wells and public water supplies. Health concerns associated with PFAS exposure include cancer, liver damage, and developmental issues.

To reduce exposure, use a water filter certified to remove PFAS.