Indoor exposure of population to radon in the FYR of Macedonia

Abstract

The authors present the results of a year-long survey of the indoor radon concentration levels in the FYR of Macedonia. A total number of 437 dwellings in eight statistical regions were subject to radon concentration measurements by using CR-39 track detectors. The annual mean indoor radon concentration in each measuring site was estimated from the four individual measurements with 3 months duration. The measuring period was from December 2008 to December 2009. The distribution of the results was nearly log–normal. The arithmetic and geometric mean values of the annual mean value of radon concentration were estimated to be 105±84 and 84*/1.9 Bq m⁻³, respectively. The annual effective dose due to indoor exposure to radon in the dwellings was estimated to be 2.1*/1.9 mSv y⁻¹.