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PFAS
Class of perfluorinated chemical compounds
PFAS
Per- and polyfluoroalkyl substances (PFAS or PFASs) are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Because of their high chemical and thermal stability, these compounds have long environmental lifetimes, and thus are commonly called "forever chemicals". The first PFAS, polychlorotrifluoroethylene, was synthesized in 1934. Their widespread use began in 1938 with the invention of Teflon (polytetrafluoroethylene), a fluoropolymer coating that resists heat, oil, stains, grease, and water. Since their inception, thousands of PFAS compounds have been created. They are used in a wide variety of products including waterproof fabric, yoga pants, carpets, shampoo, mobile phone screens, wall paint, furniture, adhesives, food packaging, firefighting foam, electrical insulation, and cosmetics. PFAS are often found in rainwater, groundwater, wastewater and soil; wastewater treatment facilities and landfills have the highest levels...
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