Pages: 46 - 49

Authors: Asiye ULUG, Melek TUNCAY KARABULUT, and Nilgün ÇELEBI

Abstract

Indoor radon concentration levels at three sites in Turkey were measured using CR-39 solid state nuclear track detectors. The annual mean of radon concentration was estimated on the basis of four quarter measurements at specific locations in Turkey. The measuring sites are on the active faults. The results of radon measurements are based on 280 measurements indoors. The annual arithmetic means of radon concentrations at three sites (Isparta, Egirdir, and Yalvac) were found to be 164 Bqm^-3, 124 Bqm^-3, and 112 Bqm^-3, respectively, ranging from 78 Bqm^-3 to 279 Bqm^-3. The indoor radon concentrations were investigated with respect to the ventilation conditions and the age of buildings. The ventilation conditions were determined to be the main factor affecting the indoor radon concentrations. The indoor radon concentrations in the new buildings were higher than ones found in the old buildings.

Key words: radon, indoor, CR-39, age, ventilation, Turkey

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