Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/10353
Title: High annual radon concentration in dwellings and natural radioactivity content in nearby soil in some rural areas of Kosovo and Metohija
Authors: Gulan, Ljiljana
Bochicchio F.
Carpentieri, Carmela
Milić G.
Stajić, Jelena
Krstic, Dragana
Stojanovska Z.
Nikezic, Dragoslav
Žunić Z.
Journal: Nuclear Technology and Radiation Protection
Issue Date: 1-Mar-2013
Abstract: Some previous studies on radon concentration in dwellings of some areas of Kosovo and Metohija have revealed a high average radon concentration, even though the detectors were exposed for three months only. In order to better design a larger study in this region, the annual measurements in 25 houses were carried out as a pilot study. For each house, CR-39-based passive devices were exposed in two rooms for the two consecutive six-month periods to account for seasonal variations of radon concentration. Furthermore, in order to correlate the indoor radon with radium in nearby soil and to improve the knowledge of the natural radioactivity in the region, soil samples near each house were collected and 226Ra, 232Th, 40K activity concentration were measured. The indoor radon concentration resulted quite high from the average (163 Bq/m3) and generally it did not differ considerably between the two rooms and the two six-month periods. The natural radionuclides in soil resulted to be distributed quite uniformly. Moreover, the correlation between the226Ra content in soil and radon concentration in dwellings resulted to be low (R2 = 0.26). The annual effective dose from radon and its short-lived progeny (5.5 mSv, in average) was calculated by using the last ICRP dose conversion factors. In comparison, the contribution to the annual effective dose of outdoor gamma exposure from natural radionuclides in soil is nearly negligible (66 μSv). In conclusion, the observed high radon levels are only partially correlated with radium in soil; moreover, a good estimate of the annual average of radon concentration can be obtained from a six-month measurement with a proper choice of exposure period, which could be useful when designing large surveys.
URI: https://scidar.kg.ac.rs/handle/123456789/10353
Type: Article
DOI: 10.2298/NTRP1301060G
ISSN: 14513994
SCOPUS: 84877886404
Appears in Collections:Faculty of Science, Kragujevac
Institute for Information Technologies, Kragujevac
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