What’s in Cigarette Smoke?

There are over 4,000 identified chemicals in cigarette smoke. Listed here are 109 of the more toxic chemicals. Those proven to cause cancer are in boldface type. Those proven to cause birth defects are in italic type. Hover the mouse pointer over the chemical name(s) that are highlighted to see other ways in which the same chemical is used.

Arizona Smokers’ Helpline: 1-800-55-66-222 | Email: ashline1@u.arizona.edu | Webmaster: nicnet@u.arizona.edu| © 2004-2006 State of Arizona.

All rights reserved. The Arizona Smokers’ Helpline is made available as a free service to the citizens of Arizona through funding provided by the Tobacco Tax and Health Care Act, as disbursed by the Arizona Department of Health Services Tobacco Education and Prevention Program (TEPP) in partnership with the Mel and Enid Zuckerman College of Public Health at the University of Arizona.