perfluorooctanoic acid carcinogenic?

In addition to PTFE itself, the safety questions about Teflon non-stick pans are partly from a processing aid used in its production process.-- perfluorooctanoic acid (PFOA). There are reportssaid the substance can cause cancer and has been linked to birth defects. So, is it true? Perfluorooctanoic acid, an organic acid in which the hydrogen in the carbon chain is completely replaced by fluorine atoms, is used industrially in the production of fluoropolymers, but only in trace amounts in the final product.

the effects of perfluorooctanoic acid on human health are still controversial. Some epidemiological studies have indeed linked it to an increased risk of cancer or birth defects, but it is worth noting that these studies have targeted occupational factory exposures or contaminated water sources, and there is no evidence that minimal exposure in Teflon-coated finished products increases the risk.

U.S. Environmental Protection Agency (EPA) and the American Cancer Society (ACS) noted that there was no need to worry about its exposure to Teflon and similar fluoropolymer products per se.

also, perfluorooctanoic acid is now no longer used for non-stick pan coating production.2011, all the non-stick cookware was realized.PFOA, as long as it is2012and afterdragon coated cookware, all no longer use perfluorooctanoic acid