Polonium-210 Content of Mainstream Cigarette Smoke

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Science  30 Jul 1965:
Vol. 149, Issue 3683, pp. 537-538
DOI: 10.1126/science.149.3683.537


When eleven brands of cigarettes were smoked in a standardized manner, differences in the polonium-210 content of various brands were found. The differences were not directly related to the presence of a filter or to the construction of the filter, but were related to the amount of particulate matter in the mainstream smoke.