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There is a growing body of research investigating the health effects of PFOS in humans and animals, including the reproductive, developmental, liver, kidney, thyroid, and immunological effects. [42] According to a 2002 report by the Environmental Directorate of the OECD , "PFOS is persistent, bioaccumulative, and toxic to mammalian species."
Lighter Side. Politics. Science & Tech. ... in 2022 found that "some negative health effects may occur" from exposure to two of the most commonly identified PFAS compounds, known as PFOS and PFOA, ...
"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."
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.
The EPA announced on Wednesday that PFOA and PFOS could not exceed four parts per trillion in drinking water; and three additional PFAS are being restricted to 10 parts per trillion, reports NBC News.
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.
A number of jurisdictions have guidelines or limits for the concentration of PFHxS in water, in diets, and in the environment. There are fewer regulations on PFHxS compared to PFOS and PFOA. This reflects the relative lack of epidemiological and toxicological information on the human health effects of exposure to PFHxS. [4]
At Wright-Patterson Air Force Base in Dayton, Ohio, groundwater test results from June included samples as high as 7,400 parts per trillion (ppt) for PFOS and 450 ppt for PFOA, two of the most ...