Per- and polyfluoroalkyl substances - Wikipedia
WEBPer- and polyfluoroalkyl substances are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Different organizations use different definitions for PFAS, leading to estimates of between 8,000 and 7 million chemicals within the group.
2.2 Chemistry, Terminology, and Acronyms – PFAS — Per- and ...
WEBThis section focuses on chemistry, terminology, names, and acronyms for those PFAS most commonly reported in the environment, identified in scientific literature, and those PFAS most commonly tested for by current analytical methods.
PFAS Explained | US EPA - U.S. Environmental Protection Agency
WEBOct 25, 2023 · Basic Information about Perfluorooctanoic Acid (PFOA), Perfluorooctyl Sulfonate (PFOS) and Other Perfluorinated Chemicals (PFCs) including how people are exposed and health effects.
Per- and polyfluoroalkyl substances (PFAS) - ECHA
WEBSep 26, 2023 · Per- and polyfluoroalkyl substances (PFAS) are a large class of thousands of synthetic chemicals that are used throughout society. However, they are increasingly detected as environmental pollutants and some are linked to negative effects on human health.
WEBclass of synthetic chemicals. Chains of carbon (C) atoms surrounded by fluorine (F) atoms − Water- and oil-repellent − Stable C-F bond. Perfluorooctanoic acid (PFOA) PFAS include oxygen, hydrogen, sulfur and/or nitrogen atoms, creating a water-soluble end. Perfluorooctanesulfonic.
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
WEBPer- and polyfluoroalkyl substances (PFAS) are a large, complex group of synthetic chemicals that have been used in consumer products around the world since about the 1950s. They are ingredients in various everyday products.
Scientific Basis for Managing PFAS as a Chemical Class
WEBJun 30, 2020 · The basis for the class approach is presented in relation to their physicochemical, environmental, and toxicological properties. Specifically, the high persistence, accumulation potential, and/or hazards (known and potential) of PFAS studied to date warrant treating all PFAS as a single class.
PFAS: Per- and Polyfluoroalkyl Substances - Department of Energy
WEBWhat Are PFAS? Per- and polyfluoroalkyl substances (PFAS) are a group of human-made chemicals that were first used in the 1940s, followed in subsequent decades by the development of thousands of new PFAS chemistries.
Per- and Polyfluoroalkyl Substances (PFAS) | NIST
WEBJan 1, 2008 · Perfluorinated and polyfluorinated alkyl substances (PFAS) constitute a family of compounds that are distinguished by partial or complete fluorination of alkyl hydrocarbons. Dubbed “forever chemicals”, the unique chemistry of PFAS imparts a high level of stability, making the compounds resistant to.
Our Current Understanding of the Human Health and …
WEBMay 16, 2024 · PFAS are a group of manufactured chemicals that have been used in industry and consumer products since the 1940s because of their useful properties. There are thousands of different PFAS, some of which …
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