Where It Comes From
Fluorochemical manufacturing and processing; releases can occur during production, handling, or waste disposal of PFAS precursors and products [2].
How You Are Exposed
Workers via inhalation and skin; the public mainly through contaminated drinking water, indoor dust, and products treated with fluorinated repellents near sources [1][2].
Why It Matters
PFAS persist and accumulate; some are associated with high cholesterol, reduced vaccine response, developmental effects, and certain cancers (e.g., PFOA) [1][3][4].
Who Is at Risk
Fluorochemical workers; people living near PFAS plants or contaminated wells; pregnant people, infants, and breastfeeding babies (PFAS can cross the placenta and enter milk) [1].
How to Lower Your Exposure
Check local water advisories; use NSF/ANSI 53 or 58 certified filters for PFAS; reduce use of stain‑/grease‑resistant treatments; wet‑dust and use a HEPA vacuum; follow workplace controls and PPE [1][2].
References
- [1]ATSDR. Per- and Polyfluoroalkyl Substances (PFAS) ToxFAQs. Agency for Toxic Substances and Disease Registry, 2021.
- [2]EPA. PFAS Explained. U.S. Environmental Protection Agency.
- [3]NTP. Immunotoxicity Associated with PFOS and PFOA. National Toxicology Program Monograph, 2016.
- [4]IARC. Monographs Vol. 131: Perfluorooctanoic acid (PFOA) and Perfluorooctanesulfonic acid (PFOS). International Agency for Research on Cancer, 2023.