On 15-June-2022, the EPA announced Interim Health Advisory Levels (HALs) for PFOS and PFOA (updated), and Final Health Advisory levels for GenX chemicals and PFBS. The PFOS and PFOA numbers were eye-popping! Interim updated HAL for PFOA = 0.004 parts per trillion (ppt) Interim updated HAL for PFOS = 0.02 ppt Final HAL for GenX […]
