Where It Comes From
Fluoropolymer manufacturing and processing aids; industrial discharges, air emissions, and landfill leachate; legacy use in stain‑/water‑resistant coatings and related wastes [1][2].
How You Are Exposed
Drinking contaminated water, eating fish or food from affected areas, indoor dust from treated products, and workplace exposure in fluorochemical production or firefighting [1][2][4].
Why It Matters
PFOA stays in the body for years and is associated with higher cholesterol, liver changes, reduced vaccine response (immune effects), pregnancy‑induced hypertension, small decreases in birth weight, and certain cancers (kidney, testicular) [1][3].
Who Is at Risk
People using private wells near manufacturing sites, airports/bases, or landfills; workers handling PFAS; pregnant people, infants, and children [1][2][4].
How to Lower Your Exposure
Test well water; use certified reverse osmosis or activated carbon filters; follow local fish advisories; choose PFAS‑free products; reduce dust (HEPA vacuum, wet‑wiping); follow workplace controls/PPE [2][4][5].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
- [2]EPA. PFAS National Primary Drinking Water Regulation and related guidance. 2024.
- [3]NTP. Monograph on Immunotoxicity of PFOA and PFOS. 2016.
- [4]ATSDR/CDC. PFAS and Your Health: Exposure and Health Effects. Updated 2022–2024.
- [5]EPA. Reducing PFAS in Your Drinking Water with Home Treatment. 2023–2024.