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Warnings on Unsafe PFAS Levels in Water to be Modified, EPA Says

July 20, 2022, 7:33 PM

The EPA expects to modify its warnings for unsafe levels of two major types of PFAS in drinking water before the end of the year, agency officials told its Science Advisory Board on Wednesday.

“We know these numbers will change,” Betsy Behl, director of the Environmental Protection Agency’s Health and Ecological Criteria Division, told the board, which is reviewing four PFAS-related health advisories issued in June, including two interim advisories.

The EPA warned in its interim health advisories that almost no amount of exposure to PFOA and PFOS is safe. The substances are the most well-studied members of a group ...