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Assessment of Radiological Hazards Arising from Cigarettes Smoking | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 27, Issue 3, 2016, Pages 49-53 | ||
| Author | ||
| Muhannad Kh. Mohammed | ||
| Abstract | ||
| The radioactivity in tobacco leaves collected from 8 different cigarettes producing countries after cigarette production was studied in order to evaluate the radiological consequences of cigarettes smoking. A total of 15 samples have been collected for radiometric analysis using high resolution germanium-lithium gamma spectroscopy system. It was concluded that the activities of the radioisotopes of 238U, 226Ra, 232Th and 40K in the tobacco leaves differs considerably as a result of different radioactivity levels in the producing country. The annual effective dose due to inhalation for smokers (adults) for 226Ra varied from 0.48 to 1.15 μSv (average 0.84 μSv), for 238U from 0.08 to 0.18 μSv (average 0.13 μSv), for 232Th range from 0.19 to 0.45 mSv (average 0.33 mSv), and for 40K from 3.5 to 8.6 nSv (average 6.2 nSv). The sum of the effective doses of the four naturally occurring radionuclides varied from 0.18 to 0.45 mSv/y (average 0.33 mSv/y). The maximum assessed dose arising from cigarettes smoking satisfy the public dose limit of 1 mSv/y. The annual radiation-derived risk arising from smoking one pack (20 cigarettes) per day range from 1×10-4 to 4×10-4, with a mean value of 2×10-4 (two extra cancer cases per year for each 10,000 smokers). | ||
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