Where It Comes From
Made and used in protective coatings, floor finishes, paints, and treated textiles; releases can occur during manufacturing, use, and disposal [1][2].
How You Are Exposed
Drinking water near PFAS production/use sites or fire‑training areas; indoor dust from treated carpets, upholstery, and floor care products; workplace contact [2][3].
Why It Matters
Very persistent; some side‑chain fluorinated polymers can break down to other PFAS that build up in people and wildlife. PFAS exposure has been linked to higher cholesterol, liver/thyroid effects, and reduced vaccine response; some (like PFOA) cause cancer [1][2][4][5].
Who Is at Risk
Workers handling PFAS, firefighters, and communities near plants, bases, or airports; pregnant people, infants, and children are more vulnerable [2][3].
How to Lower Your Exposure
Check local water PFAS results; use certified carbon or reverse‑osmosis filters if needed; choose PFAS‑free stain/water‑repellent products; wet‑mop/HEPA‑vacuum to reduce dust; follow workplace PPE and hygiene [2][3][6].
References
- [1]U.S. EPA. Per- and Polyfluoroalkyl Substances (PFAS): Basics.
- [2]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS), 2021 update.
- [3]U.S. EPA. National Primary Drinking Water Regulation for PFAS (Final Rule, 2024).
- [4]NTP. Immunotoxicity of PFOA and PFOS (2016 Systematic Review).
- [5]IARC Monographs. Perfluorooctanoic acid (PFOA) — carcinogenic to humans (2023).
- [6]ATSDR. PFAS and Your Health: Steps You Can Take to Reduce Your Exposure.