Composition of Tobaccos From Countries With High and Low Incidences of Lung Cancer. I. Selenium, Polonium-210, Alternaria, Tar, and Nicotine

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Abstract
Tobaccos from countries with high and low incidences of lung cancer were analyzed. Tobacco concentrations of polonium-210 were similar in cigarettes from high- and low-incidence countries. as were levels of cigarette smoke tar and nicotine. Tobaccos from low-incidence countries had significantly lower Alternaria spore counts. Mean selenium concentrations of tobaccos from the high-incidence countries (0.16±0.05 μg) were significantly lower than those of tobaccos from the lowincidence countries (0.49±0.22 μg).

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