Chemicals in a cigarette

It has been suggested that this article or section be merged with List of additives in cigarettes. (Discuss)

According to the U.S. Department of Health and Human Services^[1], the following carcinogens are found in tobacco smoke:

Chemical: Amount (per cigarette)
Acetaldehyde: 980 micrograms to 1.37 milligrams
Acrylonitrile: formerly 1 to 2 milligrams. This product was used as a fumigant in tobacco. Its use has since been discontinued.
4-Aminobiphenyl: 0.2 to 23 nanograms per cigarette
o-Anisidine Hydrochloride: unknown
Arsenic: unknown
Benzene: 5.9 to 75 micrograms
Beryllium: 0.5 nanograms
1,3-Butadiene: 152 to 400 micrograms
Cadmium: 1.7 micrograms
1,1-Dimethylhydrazine: unknown
Ethylene oxide: unknown
Formaldehyde: unknown
Furan: unknown
Heterocyclic amines: unknown
Hydrazine: 32 micrograms
Isoprene: 3.1 milligrams
Lead: unknown
2-Naphthylamine: 1.5 to 35 nanograms
Nitromethane: unknown
N-Nitrosodi-n-Butylamine: 3 nanograms
N-Nitrosodiethanolamine: 24 to 36 nanograms
N-Nitrosodiethylamine: up to 8.3 nanograms
N-Nitrosodimethylamine: 5.7 to 43 nanograms
N-Nitrosodi-n-Propylamine: 1 nanogram
4-(N-Nitrosomethylamino)-1-(3-Pyridyl)-1-Butanone: up to 4.2 micrograms
N-Nitrosonornicotine: 14 micrograms
N-Nitrosopiperidine: unknown
N-Nitrosopyrrolidine: 113 nanograms
N-Nitrososarcosine: 22 to 460 nanograms
Polycyclic aromatic hydrocarbon: 28 to 100 milligrams
o-Toluidine: 32 nanograms
Vinyl chloride: 5.6 to 27 nanograms