ALPHA RADIOACTIVITY (210 POLONIUM) AND TOBACCO SMOKE
Vincenzo Zagà*, Enrico Gattavecchia**, Vittorio Capecchi*
*Pneumothisiology Presidium - AUSL Bologna
**Chemical, Radiochemical and Metallurgical Sciences Department - Bologna University
Introduction. The 210 Polonium 210 (210Po) is included among over 4,000 substances which are in the tobacco smoke; it's a well-known, often not recognized or underestimated alpha-sender. At the cigarette fire point (600 - 880°C), 210Po volatilizes and is inhaled free and partly through the corpuscular component which is mainly at the level of bronchial bifurcations.
Objects, materials and methods. We have searched for the possible presence of any kind of radioactivity in not smoked tobacco of five known brands of cigarettes and the only alpha radioactivity in smoked tobacco.
We have noticed:
- ash 68.8 mBq (91.7%)
- passive smoke (sidestream) 1.2 mBq (1.6%)
- active smoke (mainstream) 5 mBq (6.7%).
Conclusion. Our study has proved that:
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