Where It Comes From
Made for use as a specialized surfactant in coatings, textiles, metal finishing, and some firefighting foams; releases can occur during manufacturing, use, and disposal [2].
How You Are Exposed
Drinking water near industrial sites, airports, or bases; house dust; some foods; and workplace exposures in fluorochemical or foam-use settings [1][2][3].
Why It Matters
Some PFAS are linked to higher cholesterol, reduced vaccine response, liver effects, developmental impacts, and certain cancers (e.g., PFOA is carcinogenic to humans) [1][4][5].
Who Is at Risk
Workers using PFAS or AFFF; people living near contaminated sites; pregnant people, infants, and bottle-fed babies using contaminated water [1][2].
How to Lower Your Exposure
If on a private well, test for PFAS; use certified activated carbon or reverse osmosis filters; follow local fish and water advisories; choose PFAS-free or avoid stain/water‑resistant treatments when possible; follow guidance for AFFF cleanup and disposal [2][3][6].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS), 2021.
- [2]U.S. EPA. PFAS Explained. https://www.epa.gov/pfas
- [3]U.S. EPA. PFAS National Primary Drinking Water Regulation (Final), 2024.
- [4]IARC. Press Release 264: PFOA carcinogenic to humans; PFOS possibly carcinogenic, 2023.
- [5]NTP. Immunotoxicity of PFOA and PFOS, 2016.
- [6]CDC/ATSDR. PFAS and Your Health. https://www.atsdr.cdc.gov/pfas