INDOOR RADON MONITORING IN SELECTED BUILDINGS IN VYDRNÍK (VIKARTOVCE FAULT, SLOVAKIA).

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 of 160 Bq/m3.

RADON MONITORING IN SELECTED KINDERGARTENS IN SLOVAKIA.

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 Bq m-3.

VARIATION OF RADON ACTIVITY CONCENTRATION IN SELECTED KINDERGARTENS IN SLOVAKIA.

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.

Preliminary Results of Radon Survey in the Kindergartens of V4 Countries.

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.

Indoor radon survey in Visegrad countries.

The indoor radon measurements were carried out in 123 residential buildings and 33 schools in Visegrad countries (Slovakia, Hungary and Poland). In 13.2% of rooms radon concentration exceeded 300Bqm(-3), the reference value recommended in the Council Directive 2013/59/EURATOM.