The Department of Health and Human Services (HHS) released on June 10 its 12th Report on Carcinogens, a congressionally mandated report prepared for the HHS secretary by the National Toxicology Program. The report includes eight substances not cited in the previous report, including formaldehyde and styrene. Formaldehyde is listed as a known human carcinogen and styrene is named a reasonably anticipated human carcinogen.
The 12th report includes 240 listings, some of which are classes of related chemicals or substances; 54 substances are listed as known human carcinogens; and 186 are reasonably anticipated to be human carcinogens. The 11th Report on Carcinogens was released in 2005.
The 12th Report on Carcinogens is available online.