Where It Comes From
Past production and use in surface protectors, paper/packaging, and specialty coatings; ongoing release from legacy products and industrial sites [3].
How You Are Exposed
Drinking water, food, and house dust contaminated with PFAS; contact with treated textiles and papers; workplace air/skin contact in fluorochemical manufacturing or firefighting foam use [1][2].
Why It Matters
PFAS like PFOS are linked to immune effects, higher cholesterol, liver and thyroid changes, and developmental effects; N-MeFOSA can add to PFOS body burden [1][2][3].
Who Is at Risk
People near fluorochemical plants, airports, or fire-training areas; workers handling PFAS; pregnant people, infants, and those using private wells in affected areas [1][2][4].
How to Lower Your Exposure
Use certified filters (reverse osmosis or activated carbon with PFAS claims), check local water advisories, wet-dust/HEPA vacuum, limit use of stain-resistant treatments, follow fish advisories, and use workplace PPE and hygiene [2][4].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
- [2]U.S. EPA. Our Current Understanding of the Human Health and Environmental Risks of PFAS. 2023.
- [3]U.S. EPA. Technical Fact Sheet – PFOS and PFOA (includes PFAS precursors). 2017.
- [4]CDC/ATSDR. PFAS and Your Health – Exposure, Health Effects, and Reducing Exposure. 2022.