Abstract:
Abstract
This study aims at measuring Radon Gas concentration in residential areas in Atbara
Locality River Nile state, and estimate the annual effective dose and excess life-time cancer risk to the
residents were measured, The Radon Gas concentration is measured by using Radon Scout Device,
which measures gas concentration through reagents technology that using semi-conductors, because
of its characteristic of high sensitivity . The device had been used in closed rooms for three indoor
successive hours, measuring Radon Gas concentration. The study includes 150 houses in different
areas in Atbara locality, all the houses were in Atbara town residential area which consists of 27
residential areas. Radon concentration in Atbara locality ranged between (70-3)Bg\ 𝑚 and the
average concentration of Radon Gas was21.06 Bg\ 𝑚 . The annual mean effective dose of 222Rn in
Atbara is (0.509) mS/y. the estimated excess, lifetime cancer risk was 9×10-4. The mean concentration
of 222Rn indoor air relative to WHO and EPA standards are 21.0% and 41.0 %,the concentration of
222Rn indoor air of all homes is less than the WHO guideline and EPA standard limits The study
shows that Radon Gas in Atbara Locality is relatively low compared to Levels of intervention adopted
by the International organizations for Environment protection.
