Commercial tobacco smoke is a mixture of more than 5,000 chemicals. See Table 1. A 2011 report in the International Journal of Environmental Research and Public Health (IJERPH) lists 65 carcinogens or possible carcinogens: "Our list of hazardous smoke components includes all nine components reported in mainstream cigarette smoke that are known human carcinogens (IARC Group I carcinogens), as well as all nine components that are probably carcinogenic to humans (IARC Group 2A carcinogens). In addition, it contains 34 of the 48 components that are possibly carcinogenic to humans (IARC Group 2B carcinogens)."
IJERPH table
"1Cancer inhalation risk values provide an excess lifetime exposure risk, in this case the human lung cancer risk at a 1 in 100,000 (E-5) level."
+ Carcinogens or possible carcinogens. IJERPH. Cancer risk value in mg m−3 Smoke component Cancer risk value1 Institute 1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane (DDT) 1.0E-04 U.S. EPA 1,1-Dimethylhydrazine 2.0E-06 ORNL 1,3-Butadiene 3E-04 U.S. EPA 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TEQ) 2.6E-04 Cal EPA 2-Amino-3-methyl-9H-pyrido[2,3-b]indole (MeAaC) 2.9E-05 Cal EPA 2-Amino-3-methylimidazo[4,5-b]quinoline (IQ) 2.5E-05 Cal EPA 2-Amino-6-methyl[1,2-a:3',2"-d]imidazole (GLu-P-1) 7.1E-06 Cal EPA 2-Aminodipyrido[1,2-a:3',2"-d]imidazole (GLu-P-2) 2.5E-05 Cal EPA 2-Aminonaphthalene 2.0E-05 Cal EPA 2-Nitropropane Cal EPA 2-Toluidine 2.0E-04 Cal EPA 3-Amino-1,4-dimethyl-5H-pyrido [4,3-b]indole (Trp-P-1) 1.4E-06 Cal EPA 3-Amino-1-methyl-5H-pyrido[4,3-b]-indole (Trp-P-2) 1.1E-05 Cal EPA 4-Aminobiphenyl 1.7E-06 Cal EPA 5-Methylchrysene 9.1E-06 Cal EPA 7H-Dibenzo(c,g)carbazole 9.1E-06 Cal EPA 2-Amino-9H-pyrido[2,3-b]indole (AaC) 8.8E-05 Cal EPA Acetaldehyde 4.5E-03 U.S. EPA Acetamide 5.0E-04 Cal EPA Acrylamide 8E-3 Acrylonitrile 1.5E-04 U.S. EPA Aniline B2—probable human carcinogen U.S. EPA Arsenic 2.3E-06 U.S. EPA Benz[a]anthracene 9.1E-05 Cal EPA Benzene 1.3E-03 U.S. EPA Benzo[a]pyrene 9.1E-06 Cal EPA Benzo[j]fluoranthene 9.1E-05 Cal EPA Beryllium 4.2E-06 Cadmium 5.6E-06 U.S. EPA Carbazole 1.8E-03 NATA Chloroform 4.3E-04 U.S. EPA Chromium VI 8.3E-07 U.S. EPA Chrysene 9.1E-04 Cal EPA Di(2-ethylhexyl) phthalate 4.2E-03 Cal EPA Dibenzo[a,i]pyrene 9.1E-07 Cal EPA Dibenzo[a,h]acridine 9.1E-05 Cal EPA Dibenzo[a,h]anthracene 8.3E-06 Cal EPA Dibenzo[a,j]acridine 9.1E-05 Cal EPA Dibenzo[a,h]pyrene 9.1E-07 Cal EPA Dibenzo[a,l]pyrene 9.1E-07 Cal EPA Dibenzo[a,e]pyrene 9.1E-06 Cal EPA Dibenzo[c,g]carbazole 9.1E-06 Cal EPA Ethyl carbamate 3.5E-05 Cal EPA Ethylene oxide 1.1E-04 Cal EPA Ethylenethiourea 7.7E-04 Cal EPA Formaldehyde 7.7E-04 U.S. EPA Hydrazine 2.0E-06 U.S. EPA Indeno(1,2,3-c,d)pyrene 9.1E-05 Cal EPA Lead 8.3E-04 Cal EPA N-nitrosodi-n-butylamine (NBUA) 6.3E-06 U.S. EPA N-nitrosodimethylamine (NDMA) 7.1E-07 U.S. EPA N-nitrosodiethanolamine 1.3E-05 Cal EPA N-nitrosodiethylamine 2.3E-07 U.S. EPA N-nitrosoethylmethylamine 1.6E-06 Cal EPA N-Nitrosonornicotine (NNN) 2.5E-05 Cal EPA N-Nitroso-N-propylamine 5.0E-06 Cal EPA N-nitrosopiperidine 3.7E-06 Cal EPA N-nitrosopyrrolidine 1.6E-05 U.S. EPA o-Cresol C- possible human carcinogen U.S. EPA p-Benzoquinone C- possible human carcinogen U.S. EPA p-Cresol C- possible human carcinogen U.S. EPA Polonium-210 925.9 ORNL3 Propylene oxide 2.7E-03 U.S. EPA Trichloroethylene 82 HC Vinyl chloride 1.1E-03 U.S. EPA
See also Kent, a cigarette that contained a filter made of asbestos. Composition of electronic cigarette aerosol Health effects of tobacco smoking List of additives in cigarettes
References