Where It Comes From
Made for surface treatments on textiles, paper/packaging, leather, and paints; releases occur during manufacturing, use, and disposal. Many PFOS‑based chemicals were phased out in the U.S., but older products and wastes remain sources [1][2].
How You Are Exposed
Contaminated drinking water near production sites, airports, or military bases; indoor dust/air from treated carpets and upholstery; food from grease‑resistant packaging; workplace handling of PFAS [1][3].
Why It Matters
PFAS persist and can build up in people. Studies link PFOS/PFOA exposure with higher cholesterol, reduced vaccine response, liver and developmental effects; some PFAS have been associated with certain cancers [1][3][4].
Who Is at Risk
Workers making or using fluorochemicals; people relying on contaminated water systems; pregnant people, infants, and children; communities near airports, fire training areas, or fluorochemical plants [1][2][3].
How to Lower Your Exposure
Use certified water filters (activated carbon, anion exchange, or reverse osmosis); avoid stain‑/water‑resistant treated textiles/carpets; follow local water and fish advisories; wet‑dust and use HEPA vacuums; follow workplace PPE and hygiene practices [2][3].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
- [2]US EPA. PFAS Explained; PFOS/PFOA actions and phase‑outs; Drinking Water information. 2022–2024.
- [3]CDC/ATSDR. PFAS and Your Health (Exposure, Health Effects, Reducing Exposure). 2022–2024.
- [4]NTP. Monograph on Immunotoxicity Associated with PFOS and PFOA. 2016.