Where It Comes From
Production or use of PFAS in water-/stain-resistant textiles, nonstick coatings, food packaging, metal plating, and some firefighting foams; releases contaminate water, soil, and indoor dust [1][2].
How You Are Exposed
Drinking contaminated tap or well water; eating fish/wildlife from affected waters; contact with treated products and household dust; workplace air/skin contact in PFAS-using industries [1][2].
Why It Matters
PFAS exposure is linked to increased cholesterol, immune effects (reduced vaccine response), pregnancy-induced hypertension, lower birth weight, liver and thyroid changes; some PFAS are associated with kidney and testicular cancers [1][2][3][4].
Who Is at Risk
People near industrial sites, airports/military bases using firefighting foams, or contaminated wells; PFAS-industry workers; pregnant people, infants, and children [1][2].
How to Lower Your Exposure
If on a private well, test for PFAS and consider certified activated-carbon or reverse-osmosis filters; follow local fish advisories; reduce use of stain-/water-proofing sprays; wet-dust/mop indoors; follow workplace protections and hygiene [1][2].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (Draft for Public Comment). 2021.
- [2]U.S. EPA. PFAS Explained (Per- and Polyfluoroalkyl Substances). Accessed 2024.
- [3]NTP. Monograph on Immunotoxicity Associated with Exposure to PFOA or PFOS. 2016.
- [4]IARC. Monographs Volume 135: PFOA (Group 1) and PFOS (Group 2B) evaluations. 2023.