Cadmium is found in cigarettes. Cadmium is also found in batteries.
"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
"ToxFAQsTM for Cadmium." Agency for Toxic Substances and Disease Registry. Atlanta, GA., 12 Mar. 2015. Web.http://www.atsdr.cdc.gov/toxfaqs/tf.asp?id=47&tid=15