Radon Map
Radon map help
How to use the radon map of Ireland?
This map shows a prediction of the number of homes in a given grid square that exceed the national Reference Level. Grid squares in which the predicted percentage of homes is 10% or greater are called High Radon Areas.
To find out if you live in a High Radon Area, type in your address or the village or town in which you live and the map will show that area. High Radon Areas are shown in brown or dark brown.
If you live in a High Radon Area there is a greater probability that your home will have high radon levels. High radon concentrations can be found in any part of the country so even if you do not live in a High Radon Area, it is still important to have your home and your workplace tested for radon gas.
If your home or your workplace is in a High Radon Area, it is particularly important you test your home and workplace for radon.
What does the radon map show?
This map is based on the results of the RPII’s National Radon Survey
During this survey, radon measurements were carried out in a number of homes in each 10 km grid square of the National Grid. Houses were chosen at random to give a uniform distribution across the country. In all, over 11,000 homes were measured.
The results were used to predict the percentage of homes in each 10 km grid square with radon concentrations in excess of the national Reference Level of 200 Bq/m3. The radon map has five categories: less than 1%, 1-5%, 5-10%, 10-20% and greater than 20%. If you live in an area designated as 'greater than 20%', this means that more than 20% (1 in 5) homes in that grid square are likely to have radon concentrations above the Reference Level.
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