Poly(difluoromethylene), α-fluoro-ω-[2-(phosphonooxy)ethyl]-, monoammonium salt

This substance is a fluorinated polymer, part of the PFAS family, used for water- and oil‑resistant coatings and some industrial processes. PFAS matter because they persist in the environment and can build up in people [1][2]. Data on this specific polymer are limited; information below reflects PFAS as a class [1][2].

Where It Comes From

Production and use of PFAS‑treated textiles, paper/food packaging, and industrial coatings; releases during manufacturing, product use, and disposal [1][2].

How You Are Exposed

Drinking contaminated water, eating affected foods, indoor dust and treated consumer products, and certain workplaces [1][2].

Why It Matters

PFAS are extremely persistent; some are linked to increased cholesterol, immune and liver effects, and developmental harm; PFOA is carcinogenic to humans [1][3]. Some polymeric PFAS can transform into other PFAS in the environment [2].

Who Is at Risk

People with PFAS‑contaminated water, workers who make/use PFAS, pregnant people, and infants/children (via dust and breast milk) [1][2].

How to Lower Your Exposure

Check local water quality; use certified filters (activated carbon or reverse osmosis); follow fish advisories; reduce indoor dust (HEPA vacuum, wet‑mop); choose PFAS‑free products when possible [1][2].

References

[1]ATSDR. Per- and Polyfluoroalkyl Substances (PFAS) ToxFAQs and PFAS and Your Health. Agency for Toxic Substances and Disease Registry.
[2]U.S. EPA. Learn about PFAS; Understanding the Risks of PFAS; Reducing PFAS in Drinking Water. U.S. Environmental Protection Agency.
[3]IARC. Some per- and polyfluoroalkyl substances. IARC Monographs; Press Release No. 264, 2023 (PFOA classified Group 1).