An All-Ireland Geogenic Indoor Radon Map

The project has investigated the use of Tellus radiometric data in the construction of an all-Ireland Radon Potential Map. Equivalent uranium (eU) from Tellus radiometric data were used to predict soil gas radon concentrations. A simplified GSI groundwater recharge map was used to estimate the sub-soil permeability (low, medium and high). Together these parameters have been used to define a Radon Potential Map. The maps was used as a means to divide the study area into four risk categories; Low Risk (<10), Moderate-Low (10-22.5), Moderate-High (22.5-35) and High (>35). Indoor radon measurements were not input as Radon Potential model parameters, so were used to validate the resultant map.