Where It Comes From
Made for stain- and water‑repellent coatings, industrial wetting agents, and some firefighting foams; may break down to PFHxS in people and the environment [1][2].
How You Are Exposed
Drinking contaminated water, eating fish/food from polluted areas, breathing or ingesting indoor dust from treated carpets/upholstery, and workplace contact in coating or foam use [1][2].
Why It Matters
PFHxS is very persistent and can build up in the body; studies link PFAS (including PFHxS) with changes in cholesterol and liver enzymes, thyroid effects, reduced vaccine response, and developmental outcomes [1][2].
Who Is at Risk
Communities near airports/military bases, landfills, or fluorochemical facilities; firefighters and surface‑treatment workers; pregnant people, infants, and children (higher intake per body weight) [1][2].
How to Lower Your Exposure
Check local water reports; use activated carbon or reverse osmosis home filters; choose PFAS‑free products; limit stain‑resistant treatments; wet‑mop/HEPA‑vacuum dust; follow workplace PPE/hygiene [1][2].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). Agency for Toxic Substances and Disease Registry, 2021. https://www.atsdr.cdc.gov/toxprofiles/tp200.pdf
- [2]U.S. EPA. PFAS Explained. https://www.epa.gov/pfas/pfas-explained