There are more than 12,000 types of PFAS, not all of which can be detected with current tests; the U.S. Geological Survey study tested for the presence of 32 types.
July 5, 2023
At least 45% of the nation’s tap water is estimated to have one or more types of the chemicals known as per- and polyfluorinated alkyl substances, or PFAS, according to a new study by the U.S. Geological Survey.
Study finds that PFAS detection was positively associated with the number of PFAS sources and proportions of people of color who are served by a water system.
May 17, 2023
This is the first peer-reviewed study to show sociodemographic disparities in drinking water PFAS exposures and to statistically link sources such as landfills and airports to PFAS concentrations in community water systems.