Long-term measurements of equilibrium equivalent radon and thoron progeny concentrations in Republic of Srpska dwellings

Curguz, Zoran and Stojanovska, Zdenka and Mishra, Rosaline and Sapra, B.K. and Yarmoshenko, I.V and Kolarz, P. and Janićijević, Aco and Zunic, Zora S. (2019) Long-term measurements of equilibrium equivalent radon and thoron progeny concentrations in Republic of Srpska dwellings. In: Contemporary materials 2019, 01-03 Sept 2019, Banja Luka, BiH.

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Abstract

The long-term measurements of radon and thoron equilibrium equivalent concentrations (EERC and EETC) were carried out the first time in Republika Srpska in 25 schools of its capital Banja Luka and in its wider surroundings. After this successful survey the measurements continued using the same type of the LR115 nuclear track detectors, i.e., Direct Radon Progeny Sensors/Direct Thoron Progeny Sensors (DRPS/DTPS), which were deployed in the 36 dwellings nearby the investigated schools. The aim of this study was to give possible scientific contribution considering an explanation of EERC and EETC behavior in indoor environment. The detectors were exposed for one year period at 15–20 cm distance from the walls. The EERC and EETC were found to vary in the range from 6.3 to 14.4 Bqm−3 and from 0.10 to 1.1 Bqm−3, with geometric mean 9.3 and 0.36, respectively. The same variance of EER and EET concentrations, measured in living and bedrooms of buildings built with different construction materials as well at different floors, have been obtained. The insignificant corre¬lations between EERC and EETC, shows that these concentrations appeared to be independent in investigated dwellings. The calculated ratio of EETC to EERC ranged from 0.01 to 0.16 with the geometric mean of 0.04.

Item Type: Conference or Workshop Item (Other)
Subjects: Natural sciences > Physical sciences
Divisions: Faculty of Medical Science
Depositing User: Zdenka Stojanovska
Date Deposited: 10 Feb 2020 12:23
Last Modified: 10 Feb 2020 12:23
URI: http://eprints.ugd.edu.mk/id/eprint/23781

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