Radon measurements with CR-39 track detectors at specific locations in Turkey

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 in doors. 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 in door 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 in door radon concentrations. The in door radon concentrations in the new buildings were higher than ones found in the old buildings. Koriscenjem cvrstih nuklearnih trag detektora CR-39 izmereni su nivoi koncentracije radona u zatvorenim prostorijama na tri mesta u trusnom podrucju Turske. Na osnovu cetiri kvartalna perioda ocenjene su srednje godisnje koncentracije radona, zasnivane na rezultatima 280 merenja. Utvrdjena je godisnja aritmeticka sredina koncentracije radona za Ispartu, Egirdir i Jalvac od 164 Bljm?3, 124 Bljm?3 i 112 Bljm?3, respektivno, a u opsegu 78-279 Bljm?3. Ispitan je uticaj uslova provetravanja i starosti zgrada na koncentraciju radona i potvrdjeno je da je provetravanje glavni cinilac koji utice na koncentraciju radona u zatvorenim prostorijama, kao i da je u novim zgradama koncentracija radona visa nego u starim.