Abstract: “Radioactivity level of Ra226 in soil samples was determined using NaI (Tl) detector. Soil samples were collected from Dywaniya city (Sniya, Sadeer, Bdeer, Shanafeya, city center, and Summer). Results showed the presence of natural radionuclide Ra226 in some soil samples. In order to evaluate the radiological hazard of the natural radioactivity, the mean resulted dose has been calculated.”

Keywords: Radon, Natural radioactivity, Gamma spectrometry, NaI (Tl), Environmental radioactivity