Impacts of a Health Advisory for PFOA and PFOS at Trace Levels
The EPA recently announced new health advisories for the two most commonly found forms of PFAS, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), to 0.004 parts per trillion (ppt) and 0.02 ppt, respectively. While it’s not entirely surprising that the new advisories cut the safe level of PFOA by more than 17,000 times, this news has prompted several questions from water suppl
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