摘要
This paper presents the results of indoor radon concentrations measurements in homes in A1-Sader city/Baghdad, Iraq. Radon cup technique was used, which is a cylindrical chamber 5 cm in diameter and height of 7 cm, contains solid state nuclear track detector CR-39, were distributed in 30 houses for thirty days. Results of radon concentrations show that the radon concentration is below the limit recommended by ICRP. The annual effective dose is ranged from 1.1600 to 2.1632 mSv y-1 and it＇s within the limits permitted by the ICRP. Equilibrium Equivalent Concentration （EEC） values were calculated and ranged from 14.72960 Bq/m3 to 27.45344 Bq/m3. However, the results show that indoor 222Rn exposure for samples were ranged from 0.003978 to 0.007413 work level （WL）, then the values of working level month （WLM） were calculated, the minimum value was 0.004978WLM and the maximum value was 0.009277 WLM. The radon induced lung cancer risk and the percentage of induced lung cancer risk were ranged from 13.53723 to 25.23106 per million persons, with an average of about 18.58738 per million persons.
