Small Amount of a PFAS May Weaken Immune Response, EPA Finds (2)

Thyroid function and children’s developing immune systems may be impaired following exposure to a particular PFAS, the EPA said in a draft analysis it released on Monday for public comment and scientific critique.

When finalized, the Environmental Protection Agency’s Toxicological Review of perfluorohexanesulfonic acid (PFHxS) and related salts will be used by the agency and states to inform regulatory and other decisions about when the amounts of the chemical in soil, water, or other parts of the environment need to be reduced.

“The available evidence indicates that PFHxS exposure is likely to cause thyroid and developmental immune effects in humans, ...