In addition to chemical, nonradioactive carcinogens, tobacco and tobacco smoke contain small amounts of lead-210(210Pb) and polonium-210 (210Po) both of which are radioactive carcinogens.
Okrem chemických, nerádioaktívnych karcinogénov, obsahuje tabak a tabakový dym malé množstvo izotopu olova-210 (210Pb) a izotopu polónia-210 (210Po); u oboch ide o rádioaktívne karcinogény.