量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
Thank you very much for using our website. On the 11th of March 2019, this site was moved from our own network server to the JAIRO Cloud network server. If you previously bookmarked this site, that bookmark will no longer work. We would be grateful if you could bookmark the website again. Thank you very much for your understanding and cooperation.
The natural radioactive nuclides especially 210Po, are volatilized at the temperature (600 – 800 ºC) of a burning cigarette and are taken into the human body. Therefore, analysis of natural radioactivity of 210Po in cigarettes and the effective dose to smokers should be evaluated. The activity concentration of 210Po in sixteen brands of Philippine cigarettes was measured by alpha spectrometry, and estimation of effective dose of 210Po to smokers was performed. The activity concentration of 210Po in cigarettes distributed in the Philippines ranged from 5.5 to 17.8 mBq/cigarette and the mean value of their activity concentrations was 12.0 mBq/cigarette. The mean value of annual effective doses of 210Po to smokers obtained from these activity concentrations was 0.021 mSv/y, which was lower than the reference level (1-20 mSv/y) for existing situation in ICRP Publication 103.
210Po as a source of natural radioactivity in cigarettes distributed in the Philippines
