The use of multivariate analysis of the radon variability in the underground laboratory and indoor environment

The research of the dynamics of radon in various environments, especially indoors, is of great importance in terms of protection against ionizing radiation and in designing of measures for its reduction. Research of radioactive emanations (of radon (222Rn) and thoron (220Rn)) are in the domain of radiation physics, but since a few decades ago, subject of radioactive emanation involves many other scientifi c disciplines, thus giving a multidisciplinary character to this research. Published results and development of many models to describe the behaviour of indoor radon indicate the complexity of this research, especially with models for the prediction of the variability of radon, simply because the variability depends on large number of variables. Large number of factors (such as local geology, permeability of soil, building materials used to build the buildings as well as the habits of people) impact the variation of radon, and therefore, it is important to study their correlation. In this paper, the results of correlative analysis of indoor radon and meteorological variables are presented. Furthermore, the results of multivariate classifi cation and regression analysis is presented. More details of this study can be found in [1]. Indoor radon variation depends signifi cantly on large number of factors, which include the local geThe use of multivariate analysis of the radon variability in the underground laboratory and indoor environment Jelena Filipović, Dimitrije Maletić, Vladimir Udovičić, Radomir Banjanac, Dejan Joković, Mihailo Savić, Nikola Veselinović