Where It Comes From
Ant baits and agricultural pest control; sulfluramid (N-ethyl perfluorooctane sulfonamide) degrades to PFOS in soil, water, and living things [1].
How You Are Exposed
Handling or using ant baits; contact with treated areas; drinking water or food contaminated with PFOS formed from sulfluramid and related chemicals [1][2].
Why It Matters
PFOS is linked to reduced vaccine response, higher cholesterol, liver and developmental effects; EPA now sets a very low drinking water limit for PFOS (4 parts per trillion) [2][3][1].
Who Is at Risk
Farm workers and pesticide applicators; people using ant baits indoors; pregnant people, infants, and those with PFAS-contaminated wells [1][3].
How to Lower Your Exposure
Choose non-PFAS ant controls; follow labels and wear gloves; keep baits from kids/pets; wash hands after use; test private wells for PFAS and use certified filters; follow local fish/food advisories [1][2].
References
- [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
- [2]U.S. EPA. National Primary Drinking Water Regulation for PFAS (Final Rule). 2024.
- [3]NTP. Monograph on Immunotoxicity of PFOA and PFOS. 2016.