Radon is measured in Becquerel’s per cubic metre (Bq/m3). In 1990 the Government set a National Reference level of 200(Bq/m3) for Home and 400(Bq/m3) for the Workplace. It is advised that if the readings for Radon gas are above these levels following the carrying out of Radon Testing, you should consider remedial actions to reduce them(Radon Mitigation). Radon Testing.ie supply the special Radon detectors which are used to measure Radon in your Home or Workplace.
The Radiological Protection Institute of Ireland advocates that all buildings, both old and new are tested for Radon.
The Country has been divided into a grid of squares, 10 kilometres X 10 Kilometres and is shown on a map produced by the RPII following the result of the National Radon survey (1998). This map is not intended to be used to determine whether your Home or your Workplace has high levels of Radon or not. The only way to know is to have the radon test carried out.
The percentage of Houses within each grid square that is predicted to have Radon readings above the National Reference Level of 200(Bq/m3) is shown by colour code; the darker the grid square the higher the percentage of Houses within that square with high Radon levels.
A grid square with 10% or more Houses predicted to have Radon reading above the National Reference Level is considered to be in a High Radon Area (one third of the country). However even if you do not live in one of these areas, your home may still have a high level of Radon.
Radon levels can differ a lot between buildings; even if your neighbours have measured for Radon in their homes and the readings were below the National Reference Level, you should also have your home tested. It is the only way to find out if the Radon levels are safe in your Home or Workplace.