McAfee & Taft RegLINC: Report on carcinogens lists Styrene as 'reasonably anticipated to be human carcinogen' By Jessica John Bowman


The 12th Report on Carcinogens, released by the U.S. Department of Health and Human Services on June 10, 2011, lists Styrene as a chemical “reasonably anticipated to be a human carcinogen.” The National Toxicology Program, which drafts the report, based its listing on experimental animal studies, limited evidence of carcinogenicity from human studies, and other evidence. The evidence of carcinogenic effect in humans is based largely on occupational studies in two major industries: the reinforced-plastics industry and the styrene-butadiene rubber industry. In both industries, styrene-exposed workers were found to face an increased risk of leukemia, lymphoma, or all lymphohematopoietic cancers. Although the report recognizes that the evidence associated with workers in the styrene-butadiene rubber industry is limited, due to the associated exposure of such workers to other known carcinogens including butadiene, the report indicates that the finding of increased risk of cancer in the reinforced-plastics industry is much stronger, due to the absence of cross-exposure to other known carcinogens in that industry. Although the report stops short of finding causality, due to the risks associated with confounding from exposure to other chemicals, it nonetheless concludes that “a causal relationship between styrene exposures and cancers in humans is credible.”

Article authored by McAfee & Taft Attorney: Jessica John Bowman.

LOADING PDF: If there are any problems, click here to download the file.

DISCLAIMER: Because of the generality of this update, the information provided herein may not be applicable in all situations and should not be acted upon without specific legal advice based on particular situations.

© McAfee & Taft | Attorney Advertising

Written by:


McAfee & Taft on:

Readers' Choice 2017
Reporters on Deadline

"My best business intelligence, in one easy email…"

Your first step to building a free, personalized, morning email brief covering pertinent authors and topics on JD Supra:

Sign up to create your digest using LinkedIn*

*By using the service, you signify your acceptance of JD Supra's Privacy Policy.

Already signed up? Log in here

*With LinkedIn, you don't need to create a separate login to manage your free JD Supra account, and we can make suggestions based on your needs and interests. We will not post anything on LinkedIn in your name. Or, sign up using your email address.