Open Access 2008
The aim of this research is to achieve a rough estimation of the radon diffusion coefficient from soil in Bengkulu. The samples were taken from 28 points of different area in Bengkulu. We used a GM tube and LR-115-II detectors to detect the radon concentration. It is found that the average of radon concentration is 136 Bq/m3. While, on the other hand the average of radon diffusion coefficient of soil increase lenearly with increase of soil depth. We also found that radon exhalation rate from ground surface is 0.88 mBq/m2/s up to 1.51 mBq/m2/s.