HPA-RPD-061 - Radon in Dwellings in Northern Ireland: 2009 Review and Atlas

Synopsis

This report details the work, funded by the Northern Ireland Environment Agency, to produce a more detailed map of the probability of high radon concentrations in homes throughout Northern Ireland and to bring together all the data held in the UK national radon database on radon levels in homes in Northern Ireland. It updates previous reports and presents the first radon probability map at a resolution of 1-km squares of the Irish Grid.

Data from radon measurements in over 23,000 Northern Ireland homes are presented in tabular format by local authority, by Health Board area and by various divisions of the postcode system. The radon probability maps are based on the Irish grid system and show some geographical detail, such as council boundaries, settlements and major roads.

The areas on the maps with a 1% or greater probability of the radon level in a dwelling exceeding the Action Level are designated radon Affected Areas. It is recommended that the current radon programme should be continued in radon Affected Areas with the twin objectives of identifying homes with radon concentrations at or above the Action Level and encouraging owner-occupiers and landlords to reduce the radon level.

Last reviewed: 24 November 2009