Indoor Radon Concentration to Different Lithological Conditions in Shkodra Area, Albania

The studied area is located in the north-west of Albania in urban areas of that area. Radon activity in indoor air was measured by passive and active detectors. Radon concentration survey has been carried out in schools and kindergartens. Depending on the detectors used in measurements, the long term and in a few cases is the use short term methods have been applied. In this research, it is included the results taken only for the 26passive and 15active detectors in schools and kindergartens. In addition, the results of the other 25 detectors are in the procedure of analyzing. The choice of the measured areas is related to the different geological formations. The investigation area shows low- medium – high radon indoor concentration. Keywords: radon, indoor air, soil, red clay, permeability, terra rossa.