Ivanova, Kremena and Tsenova, Martina and Kunovska, Bistra and Stojanovska, Zdenka and Badulin, Viktor (2014) Measurements of indoor radon concentration in kindergartens in Sofia, Bulgaria. Radiation Protection Dosimetry, 1-2 (162). pp. 163-166. ISSN 0144-8420
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Abstract
As a part of the systematic survey of indoor radon in Bulgaria, indoor radon concentration
was measured in 292 kindergartens buildings of Sofia city during 3 month (January – April),
2013 using the CR-39 nuclear tracts detectors. In any building at least two frequently occupied
rooms (mainly playrooms) were observed. Altogether 922 measurements were performed. The
frequency distribution was well described by the lognormal function. The measured radon
concentrations range between 9 and 1415 Bq m-3 with a geometric mean of 101 Bq m-3 (2.08) and
arithmetic mean 132 Bq m-3 with a standard deviation of 118 Bq.m-3. The radon concentrations
obtained in this survey were compared with radon concentration in Sofia dwellings obtained from
previous study. A detailed statistical analysis of the building factors was present.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Physical sciences |
| Divisions: | Faculty of Medical Science |
| Depositing User: | Zdenka Stojanovska |
| Date Deposited: | 02 Feb 2015 13:08 |
| Last Modified: | 04 Aug 2015 10:36 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/12217 |
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