List of cigarette smoke carcinogens


Commercial tobacco smoke is a mixture of more than 5,000 chemicals. According to the U.S. Department of Health and Human Services, the following are known human carcinogens found in cigarette smoke:
ChemicalAmount
Acetaldehyde980 micrograms to 1.37 milligrams
Acrylonitrileformerly 1 to 2 milligrams. This product was used as a fumigant in tobacco. Its use has since been discontinued.
4-Aminobiphenyl0.2 to 23 nanograms
o-Anisidine hydrochlorideunknown
Arsenicunknown
Benzene5.9 to 75 micrograms
Beryllium0.5 nanograms
1,3-Butadiene152 to 400 micrograms
Cadmium1.7 micrograms
1,1-Dimethylhydrazineunknown
Ethylene oxideunknown
Formaldehydeunknown
Furanunknown
Heterocyclic aminesunknown
Hydrazine32 micrograms
Isoprene3.1 milligrams
Leadunknown
2-Naphthylamine1.5 to 35 nanograms
Nitromethaneunknown
N-Nitrosodi-n-butylamine3 nanograms
N-Nitrosodiethanolamine24 to 36 nanograms
N-Nitrosodiethylamineup to 8.3 nanograms
N-Nitrosodimethylamine5.7 to 43 nanograms
N-Nitrosodi-n-propylamine1 nanogram
4--1--1-butanoneup to 4.2 micrograms
N-Nitrosonornicotine14 micrograms
N-Nitrosopiperidineunknown
N-Nitrosopyrrolidine113 nanograms
N-Nitrososarcosine22 to 460 nanograms
Polonium-210variable
Polycyclic aromatic hydrocarbons28 to 100 milligrams
o-Toluidine32 nanograms
Vinyl chloride5.6 to 27 nanograms