In the present study ten different brands tobacco cigarette were collected from Iraqi market. Sealed can technique using CR-39 plastic track detector strippable has been used in order to measure radon concentrations to calculate annual effective dose and lung cancer cases per year per million person. Etching was done with 6.25 M NaOH and optical microscope was used with the purpose of counting of alpha particle tracks. Measurements of radon concentrations in tobacco cigarette are important from the health protection point of view, so simple and reliable analytical methods must be available. Radon is one of the largest causes for lung cancer in the world. In fact, it is second only to smoking. It has been observed that tobacco smoking increases the risks of radon-induced lung cancer. Radon and cigarette smoking have synergistic, multiplicative effect on lung cancer rates. People who inhale tobacco smoke are exposed to higher concentrations of radioactivity. Ever since studies on the relation of smoking to cancer particularly the lung cancer has been established, there had been a great interest in studies concerned with the monitoring of the alpha radioactivity in tobacco. The results showed that the 222Rn concentrations in cigarette tobacco samples ranged from 227.856 Bq/m3 to777.877 Bq/m3 with an average 432.304 Bq/m3, while the radon induced lung cancer risks was found to vary from 103.473 to 353.203 with an average value of 196.317 per million person, respectively. Excellent correlation has been observed between radon concentration and lung cancer cases per year per million person for different brands tobacco cigarette.
ليث أحمد نجم | Laith Ahmed Najam | 10395