Prediction of indoor radon risk from radium concentration in soil: Republic of Macedonia case study

Bossew, Peter and Stojanovska, Zdenka and Zunic, Zora S. and Ristova, Mimoza (2013) Prediction of indoor radon risk from radium concentration in soil: Republic of Macedonia case study. Romanian Journal of Physics, 58. pp. 29-43. ISSN 1221-146X

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Geo-referenced datasets of indoor radon concentrations and radium concentrations in soil are available for the Republic of Macedonia. However, the indoor 222Rn data are spatially strongly clustered as the measurements were essentially confined to major towns and cities. Hence, the estimation of the geographical distribution of 222Rn concentration based only on the 222Rn data is difficult to be made. On the other hand, geochemical measurements 226Ra are quite well distributed over the country. Since 226Ra is the source of 222Rn, one may think of using 226Ra as a predictor for 222Rn. In this paper we present a method for modelling the stochastic dependency of indoor 222Rn of soil 226Ra. The method is new in the area on 222Rn assessment and still needs to be validated by more case studies. It must be born in mind that the indoor 222Rn depends, in some cases more strongly, on controlling factors other than the 226Ra in soil, so that its estimation from 226Ra alone is inevitably imperfect. The results must therefore be understood as estimates in absence of other information, and as a motivation to carry out measurements in regions where the model predicts higher 222Rn levels, but for which no measurements are available so far.

Item Type: Article
Subjects: Natural sciences > Physical sciences
Divisions: Faculty of Medical Science
Depositing User: Zdenka Stojanovska
Date Deposited: 08 May 2013 09:19
Last Modified: 11 Jun 2014 11:12

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