High Quality Content by WIKIPEDIA articles! Perfluorooctanoic acid (PFOA), also known as C8 and perfluorooctanoate, is a synthetic, stable perfluorinated carboxylic acid and fluorosurfactant. One industrial application is as surfactant in the emulsion polymerization of fluoropolymers. PFOA has been produced since the 1940s in industrial synthesis. It is also formed by the degradation of precursors such as some fluorotelomers. PFOA is indefinitely persistent in the environment. It is a toxicant and carcinogen in animals. In people, it is detected in the blood of general populations in the low parts per billion range where single studies have associated it with infertility, higher cholesterol, and thyroid disease. In highly exposed groups, some studies have associated PFOA exposure with birth defects, increased cancer rates, and changes to lipid levels, the immune system and liver—effects identified in animals.

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