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  • Title: Toxic and carcinogenic agents in undiluted mainstream smoke and sidestream smoke of different types of cigarettes.
    Author: Adams JD, O'Mara-Adams KJ, Hoffmann D.
    Journal: Carcinogenesis; 1987 May; 8(5):729-31. PubMed ID: 3581431.
    Abstract:
    The mainstream and sidestream smoke of four types of popular US cigarettes were analyzed for toxic and carcinogenic agents. The cigarettes included one without a filter tip, and one filter cigarette each with medium, low and ultra-low smoke yields. The analyses clearly demonstrated that 12 toxic agents determined in this study were significantly reduced in the mainstream smoke of filter cigarettes, as compared with smoke yields from the nonfilter cigarette. In the case of the ultra-low yield cigarette, mainstream smoke emissions were reduced by about 90%. In contrast to this finding, the emissions of the same toxic and carcinogenic components into sidestream smoke of the filter cigarettes were not greatly reduced. Sidestream smoke is the major contributor to environmental tobacco smoke, to which both smokers and non-smokers are exposed. Although the exposure of the smoker to mainstream smoke components is decreased due to proportionally greater consumption of low and ultra-low yield cigarettes, and lower rates of consumption of cigarettes with high smoke yields, the carcinogenic potential of indoor pollutants originating from tobacco products is not diminished.
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