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Radiation Protection Dosimetry
Year: 2009  |  Volume: 136  |  Issue: 1  |  Page No.: 56 - 60

Correlation of soil radon and permeability with indoor radon potential in Ottawa

J Chen, R Falcomer, L Bergman, J Wierdsma and J. Ly    


Soil gas radon and soil gas permeability measurements were conducted at 32 sites across the five most populated communities in the city of Ottawa where indoor radon measurements were available for 167 houses. A soil radon index (SRI) determined from the soil radon concentration and the soil gas permeability was used to characterise radon availability from soil to air. This study demonstrated that the average SRI in a community area correlates with the indoor radon potential (the percentage of homes above 200 Bq m–3) in that community. Soil gas radon concentrations together with soil gas permeability measurements can be a useful tool for the prediction of the indoor radon potential in the development of a Canadian radon risk map.

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