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The highest PFOA levels in drinking water were found in the Little Hocking water system, with an average concentration of 3.55 parts per billion during 2002–2005. [14] Individuals who drank more tap water, ate locally grown fruits and vegetables, or ate local meat, were all associated with having higher PFOA levels.
The United States Environmental Protection Agency has published non-enforceable drinking water health advisories for PFOA and PFOS. [138] [139] In March 2021 EPA announced that it would develop national drinking water standards for PFOA and PFOS. [140] Drinking water utilities are required to monitor PFAS levels and may receive subsidies to do so.
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 ]
The high levels of PFOA and PFOS detected in 2016 was not the first incident of PFOA and PFOS pollution in the area. In 2007, the EPA decided to test the water in Decatur, Alabama, a part of Morgan County, due to industrial activity linked to the production of PFOA and PFOS of the companies 3M, Daikin America, and Toray Carbon Fibers America. [47]
In 1949, 3M began producing PFOS-based compounds by electrochemical fluorination. [5] In 1968, organofluorine compounds were detected in the blood serum of consumers, and in 1976, perfluorooctanoic acid (PFOA) or a related compound such as PFOS were suggested as components.
2. Chipotle (2015–2018) A fast food chain’s reputation takes a major hit after one serious food poisoning outbreak. So, it’s unfathomable that Chipotle is still going strong, given it didn ...
Perfluorooctanoic acid (PFOA) is a synthetic perfluorinated carboxylic acid and fluorosurfactant. It has been used in the manufacture of such prominent consumer goods as polytetrafluoroethylene (PTFE; Teflon and similar products). PFOA has been manufactured since the 1940s in industrial quantities. [74] PFOA persists indefinitely in the ...
There's a new No. 1-ranked player in the transfer portal. Washington State quarterback John Mateer is entering the transfer portal, Cougars coach Jake Dickert confirmed Monday. He's the No. 1 ...
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