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 […]
Tag Archives: EPA
02
Jun
Jun
The annual DoD EMDQ Workshop, usually a source of great information and networking, was cancelled this year. To cover updates that would have been discussed at the workshop, the DoD team hosted an informative webinar on multiple topics. Highlighted below are some PFAS methods updates from Janice Willey’s May 19 presentation. The PFAS Isotope Dilution […]
16
Mar
Mar
Summary SGS has developed and validated accurate, sensitive and accessible polychlorinated biphenyls (PCBs) analysis by GC-MS in support of the US EPA’s initiative to update the PCB measurement strategy for the National Pollutant Discharge Elimination System (NPDES) permit program. Background Polychlorinated Biphenyls (PCBs) are ubiquitous contaminants regulated under the US Clean Water Act. Currently, the […]