http://www.ij-er.org
Effects of floor levels (ground, first and second) and ventilation rate on the density of indoor radon and its progeny have been evaluated inside most of public hospitals. Ventilation rate is represented by the air moving rate; poor, fair, good, very good. Locations of the selected hospitals had different geological formation in three main governorates: Erbil, Duhok and Sulaymaniya.