RESEARCH TRIANGLE PARK, North CarolinaSixteen chemicals and other
agents will undergo toxicologic review by the National Toxicology Program for
possible listing as known or reasonably anticipated to be human carcinogens in
the 11th edition of the federal Report on Carcinogens.
The agency plans to review three viruses (hepatitis B, hepatitis C, and
high-risk human papillomaviruses), three types of radiation (x-rays, gamma
radiation, and neutrons), two substances formed in cooking, and nine chemicals
to which certain industrial workers are exposed.