Expert Report

Each report is produced by a committee of experts selected by the Academy to address a particular statement of task and is subject to a rigorous, independent peer review; while the reports represent views of the committee, they also are endorsed by the Academy. Learn more on our expert consensus reports.

In 2011, the National Toxicology Program listed styrene as "reasonably anticipated to be a human carcinogen" in its 12th Report on Carcinogens. Congress directed the Department of Health and Human Services to request the National Academy of Sciences to review independently the substance profile of styrene and its listing in the Report on Carcinogens. This report presents the findings and conclusions of the committee formed in response to the congressional request. After conducting a scientific review of the styrene assessment presented in the Report on Carcinogens, the committee finds that the overall conclusion reached by the National Toxicology Program in 2011, that styrene is "reasonably anticipated to be a human carcinogen," is appropriate.