| NUKLEONIKA 2010, 55(3):369-375
ANNUAL OBSERVATIONS OF RADON ACTIVITY CONCENTRATIONS
IN DWELLINGS OF SILESIAN VOIVODESHIP
Małgorzata Wysocka1, Beata Kozłowska2, Jerzy Dorda2, Barbara Kłos2,
Izabela Chmielewska1, Jan Rubin3, Maria Karpińska4, Marek Dohojda5
1 Laboratory of Radiometry, Central Mining Institute,
1 Gwarków Sq., 40-166 Katowice, Poland
2 Department of Nuclear Physics and Its Applications, Institute of Physics,
University of Silesia, 4 Universytecka Str., 40-007 Katowice, Poland
3 Faculty of Civil Engineering, Department of Building Processes,
Silesian University of Technology,
5 Akademicka Str., 44-100 Gliwice, Poland
4 Department of Biophysics, Medical University of Białystok,
2A A. Mickiewicza Str., 15-089 Białystok, Poland
5 Building Research Institute, 1 Filtrowa Str., 00-611 Warsaw, Poland
In the paper, results of year-long measurements of radon levels in dwellings on the premises of Silesian Voivodeship are presented. Track etched detectors with polymer CR-39 foils were used in the investigations. As the studied buildings were located in different regions of Silesian Voivodeship, therefore results of measurements were analysed due to possible influence of geological structure or effect of mining operations in places, where given dwellings were situated. Elevated concentrations of radon were measured mostly in dwellings located in areas, where permeable Triassic limestone and dolomite occur, as it has been predicted. On the other hand, the impact of mining activity such as disintegration of rock-body and activation of faults plays an important role, too, because it enables radon migration and its entry into buildings. Beside the analysis of seasonal variations of radon activity concentration, the impact of temperature and pressure on these fluctuations outdoor and indoor buildings has been analysed.
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