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CAS 4151-50-2

Sulfluramid

Sulfluramid is a pesticide used in ant baits (often against leaf‑cutting ants). It breaks down into PFOS, a long‑lasting PFAS that accumulates in people and wildlife and can harm the immune system, liver, and development [1][3].

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. [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
  2. [2]U.S. EPA. National Primary Drinking Water Regulation for PFAS (Final Rule). 2024.
  3. [3]NTP. Monograph on Immunotoxicity of PFOA and PFOS. 2016.

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