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The EPA issued health advisories for four specific PFASs in June 2022, significantly lowering their safe threshold levels for drinking water. PFOA was reduced from 70 ppt to 0.004 ppt, while PFOS was reduced from 70 ppt to 0.02 ppt. A safe level for the compound GenX was set at 10 ppt, while that for PFBS was set at 2000 ppt. While not ...
On Wednesday the FDA announced certain grease-proofing substances containing per and polyfluoroalkyl substances, or PFAS, would no longer be sold for use in food packaging in the U.S.
PFAS chemicals are all around us; they are used in non-stick cookware, food packaging, children's products, carpets, leather goods, ski wax, firefighting foams and more, and they have leached into ...
In 2023, the United States EPA proposed "the first (US national) standard to limit (PFAs) in drinking water;" albeit only six of >12,000 such chemicals were addressed. [11] At high temperatures or in a fire, fluoroelastomers decompose and may release hydrogen fluoride. Any residue must be handled using protective equipment. [citation needed]
"Some negative health effects may occur with concentrations of PFOA or PFOS in water that are near zero and below EPA's ability to detect."
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). It is an anthropogenic (man-made) fluorosurfactant, now regarded as a global pollutant.
A new EU drinking water directive issued in 2020 adopted PFAS limit values. The limit values are 0.1 μg/L for the sum of 20 PFASs including PFHxS, and 0.5 μg/L for the sum of all PFASs. This directive is binding for all EU member nations. It is a minimum directive, and member states can elect to adopt stricter regulations. [19]
The EPA estimates thousands of PFAS are already in the U.S. environment and can be found in drinking water, soil, food, household items such as carpets and cookware, and more.
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