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  2. Per- and polyfluoroalkyl substances - Wikipedia

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

    It is commonly referred to as the main harmful PFAS chemical and PFOA is responsible for many of the negative health effects commonly associated with PFAS. Per- and polyfluoroalkyl substances are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Different organizations use ...

  3. Perfluorohexanesulfonic acid - Wikipedia

    en.wikipedia.org/wiki/Perfluorohexanesulfonic_acid

    Perfluorohexanesulfonic acid (PFHxS) (conjugate base perfluorohexanesulfonate) is a synthetic chemical compound. It is one of many compounds collectively known as per- and polyfluoroalkyl substances (PFASs). It is an anionic fluorosurfactant and a persistent organic pollutant with bioaccumulative properties.

  4. Timeline of events related to per- and polyfluoroalkyl substances

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

    2017 PFAS are on the Government of Canada's 2019 chart of substances prohibited by the Canadian Environmental Protection Act, 1999 (CEPA) and by the Prohibition of Certain Toxic Substances Regulations, 2012. These substances are under these regulations because they are "among the most harmful" and "have been declared toxic to the environment ...

  5. PFAS 'forever chemicals' can harm you. So where are ... - AOL

    www.aol.com/pfas-forever-chemicals-harm-where...

    The pollutants belong to a class of compounds known as per- and polyfluoroalkyl substances, or PFAS. The so-called “forever chemicals” − a name attributed to PFAS' centuries-long half-life ...

  6. Common questions about PFAS, answered - AOL

    www.aol.com/common-questions-pfas-answered...

    Story at a glance A group of potentially harmful chemicals called per- and polyfluoroalkyl substances (PFAS) have repeatedly cropped up in headlines. But the sheer number of chemicals in this ...

  7. EPA may list PFAS as hazardous substance - AOL

    www.aol.com/epa-may-list-pfas-hazardous...

    These PFAS would be added to the list of substances identified for consideration in facility assessments and, where necessary, further investigation and cleanup through the corrective action ...

  8. Perfluorinated compound - Wikipedia

    en.wikipedia.org/wiki/Perfluorinated_compound

    Fluorosurfactants (PFAS) reduce surface tension by concentrating at the liquid-air interface due to the lipophobicity of polyfluorocarbons. Chlorofluorocarbons are also perfluorinated compounds, many of which were formerly used as refrigerants until they were implicated in ozone degradation.

  9. US designates PFAS chemicals as Superfund hazardous substances

    www.aol.com/news/us-designates-pfas-chemicals...

    The rule will require companies to report leaks of two of the most commonly used per- and polyfluoroalkyl substances, or PFAS, and help pay to clean up existing contamination. The EPA last week ...