Monitoring of radon concentrations in Jazan beach soil

Abstract

The concentration of radon activities and exhalation rate from sand was measured in collected sand samples from different locations in Jazan. In this study the solid state nuclear track detectors SSNTD are used to investigate the radioactive material in the collected sandsampes. The concentrations of radon and alpha emitters in 18 selected areas in Jazan were evaluated using CR-39 detector. The diffusion chamber is designed to set alpha emission distributions in volume and radon concentrations at the top shelf of a 9.0 cm height. The results show that the mean exhalation rate is 18.72 mBq /m 2.d and radon concentrations is 88.17 Bq/m 3. From the measured concentrations the calculated average annual effective dose to the general public of the regions was found to be 1.52 mSv/y. These values fall within the accepted level set by the International Committee for Radiation Protection (ICRP). The alpha concentrations varied from 55.56 to275.79 Bq/m 3 with an average of 97.22 Bq/m 3.