According to U.S. National Toxicology Program’s Report on Carcinigens, formaldehyde causes cancer and styrene is a possible carcinogen. The finding, according to the New York Times:
was delayed for years because of intense lobbying from the chemical industry, which disputed its findings.
According to John Bucher, associate directror of the Program, workers involved in the manufacture of products containing formaldehyde are at greatest risk, but consumers can be exposed to potentially dangerous quantities of formaldehyde.
Formaldehyde is commonly found in many contemporary building materials, including pressed wood products, paneling, particle board and cabinets.