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Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer." [7] [2] [8] [9] Although many of these additives are used in making cigarettes, each cigarette does not contain all of these additives. Some of these additives are found in cigarettes outside the USA too. [10] Some American brands are sold in other nations.
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 o-Anisidine hydrochloride: unknown Arsenic: unknown Benzene: 5.9 to 75 micrograms Beryllium: 0.5 nanograms 1,3 ...
Second-hand smoking (SHS) is a combination of sidestream smoke (i.e., smoke emitted from the burning cigarette, pipe, or cigar) and the mainstream smoke exhaled from the lungs of smokers. It contains more than 4,000 chemicals, many of which are known to affect health.
e. Tobacco smoke is a sooty aerosol produced by the incomplete combustion of tobacco during the smoking of cigarettes and other tobacco products. Temperatures in burning cigarettes range from about 400 °C between puffs to about 900 °C during a puff. During the burning of the cigarette tobacco (itself a complex mixture), thousands of chemical ...
E-cigarette vapor potentially contains harmful chemicals not found in tobacco smoke. [85] E-cigarette vapor contains fewer toxic chemicals, [81] and lower concentrations of potential toxic chemicals than cigarette smoke. [86] The vapor is probably much less harmful to users and bystanders than cigarette smoke, [84] although concern exists that ...
Tobacco smoking is the practice of burning tobacco and ingesting the resulting smoke. The smoke may be inhaled, as is done with cigarettes, or simply released from the mouth, as is generally done with pipes and cigars. The practice is believed to have begun as early as 5000–3000 BC in Mesoamerica and South America. [1]
Tobacco smoke is a complex mixture of more than 5,300 identified chemicals. The most important carcinogens in tobacco smoke have been determined by a "Margin of Exposure" approach. [ 44 ] Using this approach, the most important tumorigenic compounds in tobacco smoke were, in order of importance, acrolein , formaldehyde , acrylonitrile , 1,3 ...
Tobacco harm reduction (THR) is a public health strategy to lower the health risks to individuals and wider society associated with using tobacco products. It is an example of the concept of harm reduction, a strategy for dealing with the use of drugs. Tobacco smoking is widely acknowledged as a leading cause of illness and death, [1] and ...