DuPont has settled a lawsuit in which West Virginia residents accused the company of contaminating water supplies with a chemical used to make Teflon products.

With evidence suggesting that Teflon may be making people sick, one of DuPont's most valuable assets may become a potentially huge liability.

The company failed to report the results of tests it had carried out on a chemical related to the manufacturing of Teflon.

West Virginia State Supreme Court overturns order for DuPont to pay for 50,000 blood tests for people in Wood County who say chemical used to make Teflon, C-8, contaminated their water supply; says company was not given proper notice that residents were seeking injunction

Environmental Working Group petitions Consumer Safety Products Commission to put warning on labels of Teflon-coated cookware and heated appliances claiming Teflon breaks down and produces toxic gases at normal cooking temperatures