Radon Map and Monitoring Data
The Radon Map of Ireland shows the results of the Radiological Institute of Ireland's National Survey of Ireland.
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.
To find out more about the Radon Map of Ireland please visit the RPII website.