WebFeb 2, 2024 · EPA is undertaking an update of the Integrated Risk Information System (IRIS) health assessment for PFHxA and it's related salts. The outcome of this project is … WebAdditional EPA toxicity information may be available by visiting the following sites: Human Health Benchmarks for Pesticides (HHBP). This database provides human health …
IRIS Toxicological Review of Perfluorohexanoic Acid (PFHxA ... - US EPA
WebApr 13, 2024 · EPA developed the health-based values, also called Health Based Water Concentration (HBWC), based on prior toxicity assessments for each chemical. EPA set the HBCW for GenX at 10 ppt; PFBS at 2000 ppt; PFNA at 10 ppt; and PFHxS at 9 ppt. The HI is calculated as follows: THE EFFECTS OF THE PROPOSED RULE WebOct 21, 2024 · EPA released an update to the Systematic Review Protocol for the PFBA, PFHxA, PFHxS, PFNA, and PFDA IRIS Assessments in response to public comments. … keeping barn cats warm in winter
Availability of the Draft IRIS Toxicological Review of ...
WebOct 18, 2024 · The EPA plan also says toxicity assessments will be issued for five other PFAS compounds — PFBA, PFHxA, PFHxS, PFNA, and PFDA. Three of those compounds — PFHxA, PFNA, and PFDA — and PFOS were found in foam in a Cumberland County stream by state regulators this year. WebFinalizing the toxicity assessments for PFBS and GenX in 2024. Developing draft toxicity assessments for PFBA, PFHxA, PFHxS, PFNA, and PFDA in 2024. Developing guidance to facilitate cleanup of contaminated groundwater. Developing new tools to characterize PFAS in the environment and materials to communicate about PFAS. WebApr 13, 2024 · In April 2024 and 2024, EPA issued the final human health toxicity assessment for PFBS [Human Health Toxicity Values for Perfluorobutane Sulfonic Acid (CASRN 375–73–5) and Related Compound Potassium Perfluorobutane Sulfonate (CASRN 29420–49–3)], 4 Gen X chemicals [Final Human Health Toxicity Values for … lazy girl ground turkey stroganoff