EuNPC2015

There are many methods to determine 222Rn concentration in the air. In this study, 500 LR -115 nuclear trace detectors were placed to 25 schools in Fatih District and they stayed there for a month-period. After a month, the detectors were collected gently and the traces which occurs via basic alpha decay on detector material, counted by using a special method for that special type of LR – 115 detectors. According to the results of investigations, it was that the radon concentration varies between 40 – 395 Bq/m3. Our results are lower compared with Turkey’s limits (400 Bq/m3) conversely the results are higher compared with WHO’s limits (100 Bq/m3).