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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] They were branded as "Forever Chemicals" in an article in the Washington Post in 2018. [4]
There are chemicals in cookware, food, water, clothes and furniture that could cause problems for people’s health. ... Dr. Carmen Marsit: PFAS are a class of about 15,000 human-made chemicals ...
The analysis found 66, or 14%, of all active ingredients in pesticides are PFAS, which are intentionally added to improve the product’s ability to eliminate pests, Andrews said. “They add PFAS ...
PFAS in contaminated soil and irrigation water can end up in food. ... Most measurements of PFAS in humans are made with serum, a fluid derived from blood but without coagulants or red blood cells ...
This timeline of events related to per- and polyfluoroalkyl substances (PFASs) includes events related to the discovery, development, manufacture, marketing, uses, concerns, litigation, regulation, and legislation, involving the human-made PFASs. The timeline focuses on some perfluorinated compounds, particularly perfluorooctanoic acid (PFOA ...
In the commercial product Surflon S-111 (CAS 72968-3-88) it is the primary compound present by weight. PFNA is used as surfactant for the production of the fluoropolymer polyvinylidene fluoride. [6][7] It is produced mainly in Japan by the oxidation of a linear fluorotelomer olefin mixture containing F (CF 2) 8 CH=CH 2.
Microbac Laboratories, a Pennsylvania-based environmental, food and life sciences testing company, is one of many firms offering PFAS testing services to Midwestern customers, from public water ...
Perfluoroalkoxy alkanes (PFA) are fluoropolymers. They are copolymers of tetrafluoroethylene (C 2 F 4) and perfluoroethers (C 2 F 3 OR f, where R f is a perfluorinated group such as trifluoromethyl (CF 3)). The properties of these polymers are similar to those of polytetrafluoroethylene (PTFE). Compared to PTFE, PFA has better anti-stick ...