Reference Dose News Today

EPA toxicity assessments are important for businesses with current or legacy uses of PFHxA and PFDA to pay attention to, and PFHxA and PFDA considerations must enter into the equation for any compliance programs in order to avoid significant financial disruption.

The complaint was filed Tuesday in U.S. District Court for Eastern Louisiana on behalf of the EPA under the Clean Air Act.

This week, guest host Kelly Kenoyer draws on months of reporting to present a closer look at what's going on with PFAS, the family of 'forever chemicals' that includes GenX and thousands of others. We'll tackle the history, science, and politics of the problem — and look at what can be done in the future.

EPA released its draft Toxicological Review of PFHxA and Related Salts, the latest risk assessment put forth by the EPA for certain types of PFAS. Reference Dose is considerably lower than assessments released by the EPA at the end of 2021 for other types of PFAS.

EPA transmitted four important documents to the EPA Science Advisory Board SAB for peer review that included updated health assessments for perfluorooctanoic acid PFOA and perfluorooctane sulfonic acid PFOS.

The U.S. Environmental Protection Agency (EPA or Agency) has released its final human health toxicity assessments for a subgroup of PFAS chemicals known as GenX (i.e., hexafluoropropylene oxide dimer acid and its ammonium salt).