Where It Comes From
fluorotelomer PFAS manufacturing; treated textiles, paper/food packaging, and firefighting foams; releases from factories, product use, and waste sites [1][2].
How You Are Exposed
drinking water near production or AFFF-use sites; indoor dust from treated carpets and upholstery; food via packaging or contaminated fish/wildlife [1][2].
Why It Matters
many PFAS persist and build up in people; studies link exposure to higher cholesterol, liver enzyme changes, reduced vaccine response, pregnancy‑induced hypertension, lower birth weight, and—for PFOA—kidney and testicular cancer [1][3][4].
Who Is at Risk
workers handling PFAS or AFFF; communities near airports, military bases, or PFAS facilities; pregnant people, fetuses, and infants; users of private wells in affected areas [1][2].
How to Lower Your Exposure
test well water; use NSF/ANSI 53 or 58 certified filters (activated carbon or reverse osmosis) for PFAS; follow fish advisories; choose products without “stain‑resistant”/PFAS coatings; clean dust with HEPA/damp methods [2][5].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). U.S. DHHS, 2021.
- [2]U.S. EPA. PFAS Explained; and guidance on reducing PFAS in drinking water, 2022–2024.
- [3]NTP. Monograph on Immunotoxicity of PFOA and PFOS, 2016.
- [4]IARC. Monographs: Some Per- and Polyfluoroalkyl Substances (incl. PFOA), 2023.
- [5]CDC/ATSDR. PFAS and Your Health (Reduce Exposure), 2022.