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2. Per- and polyfluoroalkyl substances - Wikipedia

   en.wikipedia.org/wiki/Per-_and_polyfluoroalkyl...

   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 ...

3. Remediation of per- and polyfluoroalkyl substances - Wikipedia

   en.wikipedia.org/wiki/Remediation_of_per-_and...

   All of these methods promote the formation of hydroxyl radicals or other oxidizing agents that can oxidize PFAS and break its C−C bonds. [3] [4] However, the remediation of PFAS depends on the environmental medium where the these compounds reside. For example, the treatment of contaminated soil, biosolids and water is not the same, and risk ...

4. Persistent organic pollutant - Wikipedia

   en.wikipedia.org/wiki/Persistent_organic_pollutant

   In 2024, a worldwide study of 45,000 groundwater samples found that 31% of samples contained levels of PFAS that were harmful to human health; these samples were taken from areas not near any obvious source of contamination. [41] Soil is also contaminated and the chemicals have been found in remote areas such as Antarctica. [42]

5. Timeline of events related to per- and polyfluoroalkyl ...

   en.wikipedia.org/wiki/Timeline_of_events_related...

   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 ...

6. Some states have banned sewage-made fertilizers. Oklahoma ...

   www.aol.com/states-banned-sewage-made...

   PFAS — short for per- and polyfluoroalkyl substances, also called “forever chemicals” — can be found in many water- and heat-resistant products, personal hygiene materials, medication and ...

7. Perfluorooctanoic acid - Wikipedia

   en.wikipedia.org/wiki/Perfluorooctanoic_acid

   Perfluorooctanoic acid (PFOA; conjugate base perfluorooctanoate; also known colloquially as C8, for its 8-carbon chain structure) is a perfluorinated carboxylic acid produced and used worldwide as an industrial surfactant in chemical processes and as a material feedstock. PFOA is considered a surfactant, or fluorosurfactant, due to its chemical ...

8. How to limit PFAS in your drinking water and food, according ...

   www.aol.com/limit-pfas-drinking-water-food...

   The US Environmental Protection Agency has finalized stringent new regulations on levels of six perfluoroalkyl and polyfluoroalkyl substances, or PFAS, in public water systems.

9. Endocrine-disrupting chemicals are everywhere. Here’s how to ...

   www.aol.com/finance/endocrine-disrupting...

   Per- and polyfluoroalkyl substances (PFAS): ... to have biomagnified levels of endocrine disrupting chemicals, and have higher concentrations of chemicals from consuming contaminated plants or ...