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[en] Radon activity concentrations in air were measured in the recreational-tourist center of Niska Banja. Alpha Guard PQ 2000/ MC50 instrumentation (Genitron instruments, Frankfurt) was used. The observed indoor radon concentrations in the air of the Radon Hotel pool lay within the range of 0.980-1.908 kBq/m3 and were directly dependent on the exhalation of radon from thermomineral waters. Radon concentrations were also measured outdoors, at locations for capping thermomineral water, as well as at locations for draining used water from the Radon Hotel pool. Outdoor radon concentrations as high as over 500 Bq/m3 were observed. Gamma dose rates were measured in parallel and found to lie within the range of 72-420 nSv/h. The gamma doses correlated well with the observed radon levels. The largest gamma dose rates in air were measured in the pool of Radon Hotel and at the site where this thermomineral water is being capped
Source
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Prague (Czech Republic); Faculty of Civil Engineering, Czech Technical University, Prague (Czech Republic); Czech Society for Radiation Protection, Prague (Czech Republic); National Radiation Protection Institute, Prague (Czech Republic); Belgian Association for Radiation Protection, Brussels (Belgium); Liege University, Liege (Belgium); [103 p.]; ISBN 80-01-03009-1; 
; 2004; p. 8; 4. European conference on protection against radon at home and at work; Prague (Czech Republic); 28 Jun - 2 Jul 2004
; 2004; p. 8; 4. European conference on protection against radon at home and at work; Prague (Czech Republic); 28 Jun - 2 Jul 2004