Where It Comes From
Made for fluorochemical coatings and surface treatments; released during manufacturing, product use (especially sprays), and disposal; acts as a PFOS‑precursor [1][2].
How You Are Exposed
Workers may inhale aerosols/vapors or have skin contact; the public may encounter it via indoor air/dust from treated items and via PFAS‑contaminated drinking water or food near affected sites [1][3][4].
Why It Matters
PFAS persist and can build up in people; PFOS exposure is linked to higher cholesterol, immune effects (reduced vaccine response), liver and developmental effects, and is classified by IARC as possibly carcinogenic (Group 2B) [1][3][5].
Who Is at Risk
Fluorochemical workers and applicators; people using waterproofing sprays indoors; communities with PFAS‑contaminated water; pregnant people, fetuses, and infants (PFAS cross the placenta and enter breast milk) [1][3][4].
How to Lower Your Exposure
Choose PFAS‑free products; avoid or ventilate during spray applications; wash new stain‑repellent items; use certified water filters for PFOA/PFOS (NSF/ANSI 53 or 58); follow workplace controls/PPE; wet‑clean dust [2][3][4].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFOA, PFOS, etc.). 2021.
- [2]U.S. EPA. Our Current Understanding of the Human Health and Environmental Risks of PFAS. 2023–2024.
- [3]CDC/ATSDR. PFAS and Your Health. Public information pages.
- [4]U.S. EPA. Consumer Resources for PFAS in Drinking Water and Health Advisories for PFOA/PFOS. 2022–2024.
- [5]IARC Monographs Vol. 132 (2023): PFOA (Group 1) and PFOS (Group 2B).