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The US-based Interstate Technology and Regulatory Council (ITRC) has undertaken an extensive evaluation of ex-situ and in-situ treatment technologies for PFAS-impacted liquid matrices. These technologies are divided into field-implemented technologies, limited application technologies, and developing technologies and typically fit into one of ...
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 ...
April 2001 In a highly cited article in the Environmental Science & Technology, published by the American Chemical Society, John Giesy and Kurunthachalam Kannan reported "for the first time, on the global distribution of perfluorooctanesulfonate (PFOS), a fluorinated organic contaminant." Based on the findings of their 2000 study, Giesy and ...
Performic acid (PFA) is an organic compound with the formula CH 2 O 3. It is an unstable colorless liquid which can be produced by mixing formic acid with hydrogen peroxide . Owing to its oxidizing and disinfecting action, it is used in the chemical, medical and food industries.
Predictive failure analysis, a technology for hard disk health monitoring, the predecessor of S.M.A.R.T. Portable Format for Analytics, a JSON-based file format for encoding data analytics, such as data mining models. PFA, an email abbreviation for "Please Find Attached" or "Please Find the Attachment"
In addition, exposure is possible via inhalation of indoor and outdoor air and ingestion of drinking water and food. [3] Direct dermal contact with PFDA-containing products is the main route of exposure. [5] PFDA has been shown to increase the expression of two cytochrome P450 enzymes, namely Cyp2B10 and 4A14 in mouse liver. [16]