Assessment of Annual effective Dose for Different Age Groups Due to Radon Concentrations in Groundwater Samples at Qassim, Saudi Arabia

Document Type: Original Paper


1 Physics Dept., College of Science, Mosul University, Mosul

2 Physics Department, Faculty of Science, Al-Azher University, Assuit Branch, 71542 Assuit, Egypt

3 University of Kufa, Faculty of Science,Physics Dept.

4 University of Kufa, Faculty of Science, Physics Department


Background: Radon (222Rn) concentrations were measured in groundwater samples produced in Qassim area, Saudi Arabia. Materials and Methods: The measurement were done using RAD-7 detector. The measured radon concentrations were used with their ingested dose conversion factors to estimate the annual effective doses for the International Commission on Radiological Protection (ICRP) age groups ≤ 1y (infants), 2 – 17y (children) and ≥ 17y (adults) from consumption of the water samples in present study. Results: The measured radon concentration values varied from 1.20 Bq/l to 15.43 Bq/l with an average of 5.18±0.39 Bq/l. The estimated total annual effective doses due to radon concentrations in drinking water ranged from 6.34 to 81.62 µSv/y for infants, 2.34 to 30.04 µSv/y for children and 3.07 to 39.42 µSv/y for adults and the corresponding average values were found to be 27.41±2.06, 10.08±0.76 and 13.23±0.99 µSv/y, respectively. Conclusion: The total annual effective dose in all samples were considerably exceeded the average worldwide ingestion exposure dose value of 0.1 mSv/y from radon concentrations reported by the United Nations Scientific Committee on Effects of Atomic Radiations (UNSCEAR). Therefore, the Qassim population is advised to consume few amount of these water samples


Main Subjects

Articles in Press, Accepted Manuscript
Available Online from 24 April 2019
  • Receive Date: 04 March 2019
  • Revise Date: 23 April 2019
  • Accept Date: 24 April 2019