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Publications (27)
The results of a pilot study performed on data from selected dwellings in Slovakia suggested that the best agreement between measured and calculated annual mean indoor radon activity concentration (RAC) were obtained by using seasonal correction factors (SCF) determined for winter season. In this paper, SCF was applied on results obtained during a...
Indoor radon survey in Zázrivá was conducted within the framework of the project “Multidisciplinary research of geophysical and structural parameters, and environmental impacts of faults of the Western Carpathians”. Monitoring was carried out in selected houses and kindergarten using RamaRn detectors. Annual average of indoor radon varied between 4...
Radon concentration was continuously monitored in a horizontal dead-end gallery near Vyhne (Central Slovakia) from October 2005 to April 2008. Hourly average of radon varied from 2800 to 10 500 Bq/m3. Temporal variation of radon, which contains periodic and non-periodic signals, spans variation of annual to diurnal scale. Time series of radon were...
In 17 kindergartens in Slovakia indoor radon survey was performed over a period of 1 y. In selected kindergartens also continuous monitoring of indoor radon activity concentration was conducted for ~2 weeks, as well as soil radon measurements. Annual average of indoor radon concentration, measured using track detectors, ranged between 75 and 1810 B...
To test the relation of indoor radon concentration to fault zone, a survey was conducted in selected buildings in Vydrník, situated close to the neotectonically active Vikartovce fault trace. Monitoring was performed using RamaRn track detectors during a period of 1 year. Annual average of indoor radon ranged from 60 to 940 Bq/m3, with an average o...
We report the results of 3-years of Radon-222 monitoring in six show caves across Europe, selected with the feature of having only one, or no natural entrance, defined as dead-end caves. The caves are located in Spain, Slovakia, Slovenia, and Czechia. The consecutive monitoring was performed between January 2017 and January 2020. Continuous measure...
In this study, 56 rooms were monitored throughout the year in four stages based on 3-month indoor radon measurements. The first seasonal correction factors for Slovakia were determined. Factors for spring, summer, autumn and winter seasons were found to be 1.15 ± 0.25, 1.48 ± 0.31, 0.86 ± 0.18 and 0.78 ± 0.17, respectively. Calculated seasonal corr...
The continuous monitoring of 222Rn activity concentration, CO2 concentration, and microclimatologic parameters (internal air temperature and relative humidity) in the Važecká Cave (Northern Slovakia) is being carried out at three monitoring stations, namely, Gallery, Lake Hall, and Entrance Hall. Radon activity concentration and CO2 concentration e...
Indoor radon survey in Sološnica, Vydrník and Zázrivá villages has been performed within the framework of the project “Multidisciplinary research of geophysical and structural parameters, and environmental impacts of faults of the Western Carpathians”. Integration measurement of ²²² Rn activity concentration has been carried out using RamaRn detect...
Radon measurements were carried out in four kindergartens in Slovakia. RSKS detectors (Radosys Ltd., Hungary) and RamaRn (SUJCHBO, Czech Republic) were used for integral measurement in indoor air. AlphaGUARD (Saphymo, Germany) and TERA system (Tesla, Czech Republic) were used for continual measurement in indoor air. An annual variation with a maxim...
The radon activity concentration was measured in 67 rooms in kindergartens in Visegrad countries over a period of 1 year using the SSNTD method within the framework of the standard V4 project. In 7.5% of rooms radon activity concentration exceeded 300 Bq m⁻³, the reference value recommended by the Council Directive 2013/59/EURATOM. The annual effec...
The measurements of radon concentration were carried out in kindergartens of V4 countries (Hungary, Poland and Slovakia). RSKS detectors (Radosys Ltd., Hungary) were used for integrating measurement in indoor air. In total, 67 rooms in 20 kindergartens were measured. The survey was carried out in two periods from October 2015 to March 2016. The res...
Long-term radon monitoring was performed in two boreholes, at a depth of 13 m in the 40 m deep V-2 borehole (August 2003-September 2005), and at 3 m depth in the 10 m deep V-3 borehole (August 2003-April 2008). Diurnal, multi-day and annual variations in radon time-series were observed. Daily average of radon activity in V-2 borehole was significan...
Radon concentration in thermal waters used in selected spas and aqua parks in Slovakia was investigated. In total, 23 thermal water sources were monitored. Measured radon levels varied in a large interval, from 4.1 to 488 Bq l-1. High radon activity (180 Bq l-1) was also found in thermal potable water in fountains used by the patients and the publi...
Integration measurements of indoor radon in houses were performed within the framework of the project “Harmonization of determining the radiation dose of the population originating from radon in V4 countries”. In Slovakia, the survey was performed in three localities: Záhorská Bystrica, Mochovce and Ružomberok. Monitoring started in March 2012 and...
The measurements of radon activity concentration carried out in residential houses of V4 countries (Hungary, Poland and Slovakia)
show that radon levels in these countries considerably exceed the world average. Therefore, the new radon data and statistical
analysis are required from these four countries. Each partner chose a region in their own cou...
Continual monitoring of radon activity concentration was performed in two caves: Domica and Važecká. Radon in the air of the
Domica cave was monitored from June 2010 to July 2011. Radon research in the Važecká cave started in June 2012 and it is still
being carried out. Radon concentration in cave atmosphere exhibited seasonal, short-term and daily...
The 222Rn activity concentration in ground water from four boreholes was investigated from January 2006 to June 2008. The boreholes are situated in the region of the Astronomical and Geophysical Observatory in Modra-Piesok (Little Carpathians Mts., 40 km NW from Bratislava, Slovakia). Three boreholes have been drilled in Lower Triassic quartzite. A...
Seasonal and short term variations of 222Rn activity concentration in borehole air and water of the borehole drilled in cracked quartzite were studied and possible
response on meteorological parameters was examined. Seasonal change of radon concentration in borehole air due to atmospheric
temperature was confirmed. Short term variation of radon con...
The 222Rn activity concentration in ground water from four boreholes was investigated since January 2006 to June 2008. The boreholes are situated at the area of the Astronomical and Geophysical Observatory in Modra-Piesok (the Little Carpathians Mts, 40km NW from Bratislava). Three boreholes V-1 (10m), V-2 (40m) and V-3 (10m) have been drilled in L...
