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Indoor Radon Levels and the Associated Effective Dose Rate Determination at Al-Elaf Distinguish Secondary School for Girls in the Basrah Governorate, Ira

Hussam Najem Abood

Study of indoor radon has been carried out in Al Elaf Distinguish Secondary School for Girls in Basrah Governorate, south of Iraq, using LR-115 type II solid state nuclear track detectors (SSNTDs). Indoor radon has become a great concern worldwide due to its health hazard effects on population. Lung cancer risk depends upon the concentration of radon and their decay products in air above action level. In the present study the value of concentration of radon ranges from 28 to 128 Bq.m-3 with an average value of 57 Bq.m-3. The Potential of Alpha Energy Concentration (PAEC) in terms of mWL ranges from 3.03 to 13.84 with an average value of 6.19. The annual exposure in terms of WLM ranges from 0.04 to 0.16 with an average value of 0.07. The annual effective dose ranges from 0.14 - 0.63 mSv.y-1 with an average value of 0.28 mSv.y-1. All these values are within the acceptable level.