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2. Perfluorooctanesulfonic acid - Wikipedia

   en.wikipedia.org/wiki/Perfluorooctanesulfonic_acid

   Perfluorooctanesulfonic acid (PFOS) (conjugate base perfluorooctanesulfonate) is a chemical compound having an eight-carbon fluorocarbon chain and a sulfonic acid functional group, and thus it is a perfluorosulfonic acid and a perfluoroalkyl substance (PFAS).

3. Perfluorohexanesulfonic acid - Wikipedia

   en.wikipedia.org/wiki/Perfluorohexanesulfonic_acid

   The Swedish National Food Agency recommends a drinking water limit of 0.09 μg/L for the sum of 11 PFASs (PFBS, PFHxS, PFOS, 6:2 FTSA, PFBA, PFPeA, PFHxA, PFHpA, PFOA, PFNA and PFDA). If PFASs are found above this limit in drinking water, immediate action is recommended to reduce the PFAS concentration in the drinking water to as far below the ...

4. Per- and polyfluoroalkyl substances - Wikipedia

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

   Public water systems in New Jersey are required to meet an MCL standard of 13 ppt. [186] [187] In 2020 the state set a PFOA standard at 14 ppt and a PFOS standard at 13 ppt. [188] In 2019 NJDEP filed lawsuits against the owners of two plants that had manufactured PFASs, and two plants that were cited for water pollution from other chemicals.

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

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

   15 June 2022 The EPA issued interim updated drinking water health advisories for PFOS and PFOA, drastically lowering previous levels from 70 ppt for both to 0.02 ppt for PFOS and 0.004 ppt for PFOA. The agency also issued final health advisories for HFPO-DA and its ammonium salt GenX at 10 ppt and for PFBS at 2000 ppt. [ 120 ]

6. GHS hazard statements - Wikipedia

   en.wikipedia.org/wiki/GHS_hazard_statements

   Hazard statements form part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). They are intended to form a set of standardized phrases about the hazards of chemical substances and mixtures that can be translated into different languages.

7. Stockholm Convention on Persistent Organic Pollutants

   en.wikipedia.org/wiki/Stockholm_Convention_on...

   PFOS have many general uses such as stain repellents but have many properties which can make it a dangerous due to the fact that PFOS can be highly resistant to environmental breakdown. PFOS can be toxic in terms of increased offspring death, decrease in body weight, and the disruption of neurological systems.