EPA Teflon

A controversial chemical used to make Teflon apparently poses more of a cancer risk than was first suggested by the Environmental Protection Agency.

The agency had stated earlier this year that there was "suggestive evidence" of a potential cancer risk from the chemical (perfluorooctanoic acid) known as C-8.

A draft report from an EPA advisory board goes further, concluding the chemical used by Dupont to make the nonstick substance is "likely" to be carcinogenic for people. The report recommends further cancer risk assessments involving tumors in animals.

Environmentalists are hailing the report as an important step in holding DuPont and government regulators accountable.