I just saw where you had asked me a question on non-stick cookware on another thread. I think this post might help and it explains things much better than I ever could. Notice it's Canada and not the States that is limiting the usage!!! Ottawa to limit non-stick, stain-repellent chemicals Last Updated Tue, 20 Jun 2006 13:49:08 EDT CBC News The federal government is moving to limit exposure to a persistent class of pollutants used in consumer products ranging from non-stick frying pans to upholstery. Charles Ethier of Health Canada says federal regulators don't recommend that consumers toss out existing products that may contain the chemicals. (CBC) Federal regulators will block imports of new products such as water repellents that break down into long-chain perfluorinated carboxylic acids, or PFCAs. Products containing the chemical have non-stick, stain-repellent and water-resistant properties. PFCAs are in the environment, and can potentially harm animal and human health. Federal regulators don't recommend that consumers toss out existing products that may contain the chemicals, saying most of the substances are eliminated during manufacturing. "We don't believe, even at the quantities we're finding it in blood of humans for example, that the levels are such that there should be any concern at all from a human health perspective," Charles Ethier of Health Canada told CBC Newsworld on Tuesday. PFOA linked to problems in animals Studies on lab animals have linked one PFCA, called perfluorooctanoic acid (PFOA), to cancer, immune problems and birth defects. PFOAs may enter the environment during manufacturing. Research by Scott Mabury, an environmental chemist at the University of Toronto, also suggests PFOAs may break down into a more persistent form that can escape from consumer products. "The decision to prohibit the four substances in particular are more of a precaution, because of the concerns we have about the potential health and environmental risk." DuPont produces two of the four new "fluorotelomer substances" included in an existing ban. "DuPont believes that the decision by Environment Canada to extend its prohibition of four new fluorotelomer substances … is not warranted based on the available science," the company said in a statement. Regulators also want to reduce emissions from residual sources of PFCA from products already on the market by negotiating with industry to cut emissions. It's thought to be the first time a country has tried to prevent exposure to PFCAs by prohibiting new products. Environment Minister Rona Ambrose and Health Minister Tony Clement announced the changes for PFCAs containing nine or more carbons in Saturday's issue of Canada Gazette, the federal government's official newsletter. However, there's no immediate timeline for the changes. Regulators are doing risk assessments to determine the health and environmental impacts of the chemicals, as well as researching what the key sources of exposure in humans are, Ethier said. So I've hijacked someone else's answer...hope they don't mind. Nancy B.