DuPont Co. hid studies showing the risks of a Teflon-related chemical used to line candy wrappers, pizza boxes, microwave popcorn bags and hundreds of other food containers, according to internal company documents and a former employee. The chemical Zonyl can rub off the liner and get into food. Once in a person’s body, it can break down into perfluorooctanoic acid and its salts, known as PFOA, a related chemical used in the making of Teflon-coated cookware.The Environmental Protection Agency has been trying to decide whether to classify PFOA as a “likely” human carcinogen. The Food and Drug Administration, in a letter released Wednesday evening by DuPont, said it was continuing to monitor the safety of PFOA chemicals in food.The DuPont documents were made public Wednesday by the Environmental Working Group, a research and advocacy organization.At the same time, a former DuPont chemical engineer, Glenn Evers, told reporters at a news conference at EWG’s office that the company long suppressed its studies on the chemical.
