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Per- and polyfluoroalkyl substances ( PFAS [1] or PFASs [2]) are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain; there are 7 million such chemicals according to PubChem. [3] PFAS came into use after the invention of Teflon in 1938 to make fluoropolymer coatings and products ...
Water-resistant clothing. Nearly 50% of paints contain PFAs. Cosmetics that are marked smudge-proof, long-lasting or waterproof. In the photography industry: film, paper, plates, X-ray film.
For the past five years, public awareness around PFAS, or "forever chemicals," has been growing in the U.S. PFAS, short for perfluoroalkyl and polyfluoroalkyl substances, are a large family of ...
The DoD has "used foam containing" PFAS chemicals "in exercises at bases across the country". The DoD, therefore, "risks the biggest liabilities" in relation to the use of PFAS chemicals according to Politico. March 2018 The PFAS Expert Health Panel on PFAS submitted their commissioned report to the Australian government.
PFAS then accumulates the biomass in fish, wildlife, ecosystems and humans. Two of the primary compounds of concern, PFOA and PFOS, pose a host of potential risks, particularly to children and ...
Gore-Tex is W. L. Gore & Associates 's trade name for waterproof, breathable fabric membrane. It was invented in 1969. Gore-Tex blocks liquid water while allowing water vapor to pass through and is designed to be a lightweight, waterproof fabric for all-weather use. It is composed of expanded PTFE (ePTFE), a stretched out form of the PFAS ...
The U.S. Department of Agriculture announced in February that PFAS can no longer be used in food packing, and the production of some of the most dangerous PFAS has been banned in the U.S. altogether.
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [3] [2] [4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.