Where It Comes From
Fluoropolymer manufacturing and other PFAS-related industrial uses; releases via industrial wastewater, contaminated sites, and disposal of PFAS-containing materials [1][2].
How You Are Exposed
Drinking water near PFAS production or firefighting foam sites; eating contaminated fish/food; indoor dust; some workplaces that handle PFAS [1][2][4].
Why It Matters
PFOA is classified as carcinogenic to humans and is linked to immune effects, increased cholesterol, and liver and developmental effects; EPA set a very low drinking water standard for PFOA [1][2][3].
Who Is at Risk
Workers in PFAS industries; people using private wells near contaminated areas; pregnant people, infants, and communities relying on local fish [1][2][4].
How to Lower Your Exposure
Use certified home water filters (activated carbon or reverse osmosis) and consider testing private wells; follow local fish/water advisories; reduce dust by wet cleaning; follow workplace safety guidance [1][2][4].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFOA). https://www.atsdr.cdc.gov/toxprofiles/tp200.pdf
- [2]EPA. Final National Primary Drinking Water Regulation for PFAS (2024). https://www.epa.gov/sdwa/final-national-primary-drinking-water-regulation-pfas
- [3]IARC Monographs Vol. 135 (2023): Perfluorooctanoic acid (PFOA). https://publications.iarc.fr/Book-And-Report-Series/Iarc-Monographs/Perfluorooctanoic-Acid-PFOA-And-Perfluorooctanesulfonic-Acid-PFOS-2023
- [4]CDC/ATSDR. PFAS and Your Health. https://www.atsdr.cdc.gov/pfas/index.html
- [5]ATSDR. Toxicological Profile for Chromium (2012). https://www.atsdr.cdc.gov/toxprofiles/tp7.pdf