Where It Comes From
Produced at fluorochemical plants as an intermediate for PFAS and fluoropolymers; precursors like this can degrade to PFOA in the environment [1][2].
How You Are Exposed
Mainly at work (inhalation/skin) and for nearby communities via air or contaminated water; for the general public, the main concern is PFOA in drinking water [1][2].
Why It Matters
Acute exposure can burn eyes, skin, and lungs via released hydrogen fluoride [4]. PFOA is carcinogenic to humans and linked to immune effects (reduced vaccine response), higher cholesterol, liver changes, and pregnancy‑induced hypertension [1][3][5].
Who Is at Risk
Fluorochemical workers; residents near PFAS production or historic use sites; people using private wells; pregnant people and infants [1][2].
How to Lower Your Exposure
If on a private well, test for PFAS; use filters certified to NSF/ANSI 53 or 58 (activated carbon or reverse osmosis) to reduce PFAS; follow local water advisories; at work, follow HF/PFAS safety procedures and PPE [2][4].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
- [2]U.S. EPA. PFAS National Primary Drinking Water Regulation and consumer guidance on reducing PFAS in drinking water. 2024.
- [3]IARC. Monographs Vol. 131: Perfluorooctanoic Acid (PFOA). 2023.
- [4]ATSDR. ToxFAQs for Hydrogen Fluoride/Hydrofluoric Acid.
- [5]NTP. Immunotoxicity of PFOA and PFOS (Systematic Review). 2016.