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Drinking Water Health Advisories for PFOA and PFOS [1]
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Date: 2016-05-05 11:03:27-04:00
2022 Interim Updated PFOA and PFOS Health Advisories
On June 15, 2022, EPA issued interim updated drinking water health advisories for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that replace those EPA issued in 2016. PFOA and PFOS are members of a chemical group called per- and polyfluoroalkyl substances (PFAS). The updated advisory levels, which are based on new science and consider lifetime exposure, indicate that some negative health effects may occur with concentrations of PFOA or PFOS in water that are near zero. These interim health advisories will remain in place until EPA establishes a National Primary Drinking Water Regulation.
At the same time, EPA also issued final health advisories for two other PFAS, perfluorobutane sulfonic acid and its potassium salt (PFBS) and for hexafluoropropylene oxide (HFPO) dimer acid and its ammonium salt (“GenX chemicals"). In chemical and product manufacturing, GenX chemicals are considered a replacement for PFOA, and PFBS is considered a replacement for PFOS.
Basic Information
Technical Information
2016 PFOA and PFOS Health Advisories
Basic Information
Technical Information
2009 Provisional Health Advisories and 2014 Draft Health Effects Documents
Technical Documents
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[1] Url:
https://www.epa.gov/sdwa/drinking-water-health-advisories-pfoa-and-pfos
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