Abstract

Background: The present research has focused on the effect of radioactivity on drinking water from five sites in the region of Zahedan city. Materials and Methods: The measurement of water activity in wells, river and spring has been used as a screening method. The determination of gamma emitters was performed by use the application of gamma spectrometry. Results: The values of Radium concentration was between less than 2 mBq/l to 3 +/- 0.4 for water wells, 5 +/- 0.4 mBq/L for river, and less than 2 mBq/L for spring. Conclusion: All values of activity in the selected water samples were lower than the permissible limit for drinking water consumption. The water was safe for drinking, washing and agricultural use.