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

PFAS surfactants used in fluoropolymer production, repellant coatings, and historically in some firefighting foams; releases can occur from manufacturing sites and treated products [1][2].

Drinking contaminated water, eating contaminated fish/food, indoor dust, contact with treated products; workplace air/skin during manufacturing or firefighting [1][2].

PFAS can build up in people and are linked (as a class) to reduced vaccine response, higher cholesterol, pregnancy and developmental effects; some (e.g., PFOA) are linked to certain cancers [1][3][4]. Data for this specific polymer salt are limited; concerns are based on PFAS family evidence [1][2].

PFAS workers and firefighters; people near industrial facilities, airports, or using private wells; pregnant people, infants, and high fish consumers [1][2].

Use certified water filters (reverse osmosis or activated carbon) for PFAS; follow local water/fish advisories; limit “fluoro”/PFAS‑treated products; wet‑dust/HEPA vacuum; follow workplace PPE/hygiene [1][2].