Comparison of indoor radon concentrations between schools in Skopje and Banja Luka cities

Stojanovska, Zdenka and Curguz, Zoran and Kolarz, P. and Zunic, Zora S. (2018) Comparison of indoor radon concentrations between schools in Skopje and Banja Luka cities. In: Savremeni materijali, 2018, 2-3 Sept 2018, Banja Luka, RS. (Unpublished)

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Abstract

Radon is a natural radioactive gas present in each indoor environment. Its harmful health effect is confirmed in many epidemiological studies. In the Republic of Macedonia, since 2008 intensive survey of radon measurements in dwellings have been started and continued with measurements in schools in 2012. Survey of indoor radon concentration in dwellings and schools of Republic of Srpska started in 2011, in Banja Luka city. In this paper, we present only the results of measurements performed in primary schools of Skopje and Banja Luka cities. In both cities, the radon measurements were performed with different types of detectors, but for this paper, the only measurements by the Raduet detector were used. Comparing the 222Rn results it can be concluded: Arithmetic means are higher than geometric mean values indicating log normal distributions; The values in Skopje are higher than in Banja Luka city. Considering a number of factors that affect radon variations, there are many reasons for differences. One of them is the different exposure time of the detectors. On the other hand, the dispersion of the results in each city expressed through the geometric standard deviation is relatively low indicating relatively homogeneous factors. Comparing the 220Rn it can be concluded: Arithmetic means are higher than geometric mean values indicating log normal distributions; The values in Banja Luka are higher than in Skopje. It is obvious that in the case of 220Rn, the exposure period does not play a significant role. One of the reasons for this difference could be the position of the detectors as well as different building materials in the schools. The dispersion of the results in Skopje is greater than in Banja Luka.

Item Type: Conference or Workshop Item (Poster)
Subjects: Natural sciences > Physical sciences
Divisions: Faculty of Medical Science
Depositing User: Zdenka Stojanovska
Date Deposited: 09 Oct 2018 09:04
Last Modified: 09 Oct 2018 09:04
URI: http://eprints.ugd.edu.mk/id/eprint/20487

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