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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).
Danger: Hazard statements. H302, H312, H314, H332: ... As with PFOS, serum PFHxS concentrations are lower amongst women and people who reported blood donation.
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 ]
Jul. 28—The U.S. Defense Department responded too slowly to reduce the dangers of cancer-causing chemicals used in firefighting foam, despite knowing the health hazards for decades, and then ...
The Devil We Know is a 2018 investigative documentary film by director Stephanie Soechtig regarding allegations of health hazards from perfluorooctanoic acid (PFOA, also known as C8), a key ingredient used in manufacturing Teflon, and DuPont's potential responsibility.
Health Canada has published drinking water guidelines for maximum concentrations of PFOS and PFOA to protect the health of Canadians, including children, over a lifetime's exposure to these substances. The maximum allowable concentration for PFOS under the guidelines is 0.0002 milligrams per liter.
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]
Perfluorooctanesulfonic acid (PFOS) and related compounds are extremely persistent and readily biomagnify. Endosulfans are a group of chlorinated insecticides used to control pests on crops such coffee, cotton, rice and sorghum and soybeans, tsetse flies, ectoparasites of cattle. They are used as a wood preservative. Global use and ...