このエントリーをはてなブックマークに追加
ID 45267
JaLCDOI
フルテキストURL
Thumnail 65_2_91.pdf 305 KB
著者
Nagamatsu, Tomohiro Graduate School of Health Sciences, Okayama University
Sakoda, Akihiro Graduate School of Health Sciences, Okayama University
Kataoka, Takahiro Graduate School of Health Sciences, Okayama University
Ono, Toshiro Department of Radiation Research Shikata Laboratory, Advanced Science Research Center, Okayama University
Yamaoka, Kiyonori Graduate School of Health Sciences, Okayama University
抄録
No research has been conducted on the radiation influence of tobacco on the alimentary system, although there have been some previous works on the respiratory system. In this study, the radioactive concentrations of 210Pb and 40K in a cigarette sample were first measured. The transfer factors of the nuclides from tobacco into smoke and solution (saliva and/or alcohol) were then examined. Moreover, the radiation doses from smoke inhalation were also evaluated. The radioactive concentrations of 210Pb and 40K in the cigarette tobacco were 0.01 and 0.3 Bq/cigarette. Since this 210Pb activity and the 210Po activity previously reported for the same sample were comparable, it can be concluded that there was a radioactive equilibrium between the 2 nuclides. The observed transfer factor of 210Pb (12%) into smoke was almost the same as that of 40K (15%), whereas the reported value for 210Po (60%) was significantly higher. The radiation doses due to inhalation of cigarette smoke varied from organ to organ, depending on the organotropic properties of the nuclide. For example, the kidneys, respiratory tract, and spleen showed relatively high doses from 210Pb and 210Po. The leaching rates indicated an inconsistent tendency related to solution types. This result could suggest that alcohol drinking, which is common in smokers, does not especially enhance the leaching characteristics.
キーワード
tobacco
radionuclides
smoking
intake
radiation exposure
Amo Type
Original Article
発行日
2011-04
出版物タイトル
Acta Medica Okayama
65巻
2号
出版者
Okayama University Medical School
開始ページ
91
終了ページ
95
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
著作権者
CopyrightⒸ 2011 by Okayama University Medical School
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Sience KeyUT