Soil gas Radon, Indoor Radon and Gamma Dose Rate in Tirana city, ALBANIA

During a 3 year period, the Natural Radioactivity Sector of the Geophysics Department has conducted radon concentration measurements in the soil and indoors in Tirana. The measurements have covered a 40 km2 area. Radon measurements have been made in 160 squares. In these 160 squares, we have made 2400 measurements of avRn and 480 measurements of soil permeability. Risk evaluations were made. They were categorized as low, medium and high. Soil measurements have included those of natural radionuclides ( K, U, Th). Radon indoor concentration levels range from 40 Bq/m3 to 1058 Bq/m3. The highest concentration levels have been found in red clay sectors, as identified in the geological map.