STUDYING OF THE GEOLOGICAL FACTORS CONTROLLING THE DISTRIBUTION OF RADON ON THE TERRITORY OF AZERBAIJAN
Ch.S.Aliyev, A.A.Feyzullayev, R.J.Baghirli, F.F.Mahmudova
Institute of Geology and Geophysics of Azerbaijan National Academy of Sciences (ANAS)
H.Javid av.119, Baku
Abstract. The article describes methodology and results of the first measurements of indoor and outdoor radon concentrations in Azerbaijan, including statistical processing of obtained results. Measured indoor radon concentrations varied in a wide range: from almost radon free houses to 1109 Bq/m3, only 7% of all measurements exceeding maximum permissible limit in Azerbaijan (200 Bq/m3). Based on obtained data maps of distribution of volumetric activity and elevated indoor radon concentrations in Azerbaijan were created for the first time. These maps reflect mosaic character of distribution of radon and enhanced values of which are confined to fractured seismically active mountain areas. Results of later carried out radon measurements in soil indicates a good correlate with indoor data. Indoor and outdoor data are well correlated with each other and have shown on its essential fluctuations both in space and in time, being controlled by the geological structure of the region, fault tectonics and seismic processes. All of this allows assertions about the natural character of excess radon values in dwellings.
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