Fact
Toluene is found in cigarette smoke. Toluene is also found in explosives.
Source 1:
"Smoking and Tobacco Control." U.S. Department of Health and Human Services, Public Health Service, National Institutes of Health, National Cancer Institute. Risks Associated with Smoking Cigarettes with Low Machine-Measured Yields of Tar and Nicotine, Oct. 2001.
http://cancercontrol.cancer.gov/tcrb/monographs/13/m13_complete.pdf
Source 2:
US Environmental Protection Agency."Explosives." Organic Chemical Process Industry. 1.