Cyclohexanesulfonic acid, undecafluoro-, potassium salt

Manufacturing and use of water‑ and stain‑resistant products, industrial processing aids, and some firefighting foams (AFFF) [1][2].

Drinking contaminated water, eating fish/wildlife from impacted waters, household dust, and workplace air or surfaces near PFAS facilities [1][2].

Health effects seen with some PFAS (e.g., PFOA/PFOS) include higher cholesterol, reduced vaccine response, liver and thyroid changes, pregnancy‑related hypertension, and certain cancers; similar PFAS sulfonates are a concern due to persistence and mobility [1][2][3][4].

Workers handling PFAS, people using private wells near industrial sites or airports, pregnant people, infants/young children, and high consumers of locally caught fish [1][2].

Test private well water; use certified activated carbon or reverse osmosis filters for PFAS; follow local fish and foam‑cleanup advisories; minimize optional stain‑resistant treatments; wet‑dust and wet‑mop regularly [1][2][5].