Indoor Radon Concentrations in Kindergartens from Different Regions of Yugoslavia

Radon indoor concentrations and activity of radionuclides in building materials in Serbia

“…Simultaneously, in Maribor, Osijek and Belgrade in kindergartens where radon indoor concentrations exceeded 150-200 Bq/m3, alpha track detectors were exposed for 3-4 months [13]. Mean radon indoor concentrations measured by alpha track detectors were 1.5 to 2.0 times lower than instantaneous radon indoor concentrations measured by alpha scintillation technique.…”

“…During fall of 1990 and spring of 1991 radon concentrations were measured in kindergartens in major cities in former Yugoslavia [13]. The results are presented in Table 4.…”

“…the highest mean radon concentrations were measured in kindergartens in Ljubljana and Maribor, where the maximal radon concentrations have been recorded, too. That is due to the building materials (materials containing higher amounts of natural radionuclides), construction (older buildings with cracks in floors), position (basements or ground floors) and soil characteristics (cinder, sedimentary formations) [13].…”

Sjenica, a Newly Identified Radon Priority Area in Serbia, and Radon Data Correlated With Geological Parameters Using the Multiple Linear Regression Model

“…A high GM=220 Bq/m 3 indoor radon concentration, associated with 238 U deposits, was also obtained in a Bulgarian survey performed in the kindergartens (Vuchkov et al, 2013) and schools of the Kremikovtsi municipality, and in Kratovsko Zletovska volcanic area in Macedonia, where a GM=157 Bq/m 3 was reported for schools and dwellings (Stojanovska et al 2016). Initial research in this region started in Slovenia (Vaupotic et al, 1992, Vaupotic et al, 1993, Vaupotic et al, 2000.…”