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2 total sentences available.
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) have been manufactured since the 1950s for use as surface protectants for textiles and leather treatment, as protection additives in food packaging and paper products, and in firefighting foams.
Source: wiktionary
Michael S. Regan, the administrator of the E.P.A., said the government intends to require near-zero levels of perfluoroalkyl and polyfluoroalkyl substances, part of a class of chemicals known as known as PFAS.
Source: wiktionary
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.