The concentrations and exposure doses of radon and thoron in residences of the rural areas of Kosovo and Metohija

Abstract This paper deals with the results of indoor radon and thoron concentrations and exposure doses obtained for 63 dwellings out of the 14 rural communities of Central Kosovo, North Kosovo and Prizren region. These research activities are part of overall radiological research that has systematically been carried out since 1986, particularly in Kosovo and Metohija regions. Passive radon/thoron discriminative detectors, exposed for three months, were used. The arithmetic mean concentrations of indoor radon and thoron are C Rn  = 429 Bq m −3 C Tn  = 85 Bq m −3 .