Evaluating Ground Water and Surface Water Radiologically Using Radon-222 at the Rustumiya and Tuwaitha Regions Southeast of Baghdad

Abstract

The study included measuring the concentration of radon -222 in ground and surface water in the Al- Rustumiya and Al- Tuwaitha regions southeast of Baghdad. Measurements were made by radon detector RAD7 on samples of groundwater which were taken from wells in eight locations of the study area as well as samples of water from the surface of the Tigris and Diyala rivers is during three periods (March, June, and October). The results showed a clear variation in radon gas concentrations in all samples according to their different locations. Where the highest concentrations were in well water for the Al-Rustamiya region and ranged between (2.5-6.4 Bq/L) followed by radon gas concentrations in well water for the Al-Tuwaitha region and ranged between (0.12-0.65 Bq / L), as for the lowest concentrations, they were in the surface waters of the Tigris and Diyala rivers and ranged between (0.1-0.23 Bq / L). The results also showed that all measured samples were within the internationally permitted limits (11.1 Bq/L). The annual effective dose calculations were performed, and their values ranged between (0.5-35 µSv.y-1).