U.S. EPA has published and/or updated Health Advisories (HAs) for the following four PFAS: Perfluorooctanoic Acid (PFOA) – 0.004 parts per trillion (ppt) Perfluorooctane Sulfonate (PFOS) – 0.02 ppt Hexafluoropropylene Oxide (HFPO) Dimer Acid and its Ammonium Salt, also known as “GenX chemicals” – 10 ppt Perfluorobutane Sulfonic Acid and its Potassium Salt (PFBS) – […]
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USEPA Updates Regional Screening Levels with 14 PFAS
USEPA’s May 18, 2022, Regional Screening Level (RSL) update included the anion and acid forms of several per- and polyfluoroalkyl substances (PFAS), providing residential and industrial soil screening levels; soil screening levels for protection of groundwater; and tapwater screening levels. 14 PFAS included in USEPA RSL Update ammonium perfluoro-2-methyl-3-oxahexanoate hexafluoropropylene oxide dimer acid (HFPO-DA) (aka, […]
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