What is a 'radon affected area'?
The Health Protection Agency (HPA), now part of Public Health England, and the British Geological Survey (BGS) gathered data from radon measurements in homes and geological data from across the UK.
A computer model was then used to combine this information and predict the statistical probability of properties exceeding the Government’s ‘Action Level’. This is a level above which the Government has advised that action should be taken to lower radon levels in dwellings in order to reduce the risk to health.
Radon levels are measured in becquerels per cubic metre of air Bq m-³. The UK Action Level is 200 Bq m-³.
A radon affected area is declared where more than one in every 100 houses (or 1%) in a one-kilometre Ordnance Survey grid square is statistically projected to contain radon above this ‘action level’.
Where are the affected areas?
In 2007 the HPA and BGS published a revised version of The Indicative Atlas of Radon in England and Wales (PDF, 2.7MB), which identifies the affected areas.
Less than 25% of the area of Milton Keynes is designated as a radon affected area.
You can check whether your property is in a Radon Affected Area in Milton Keynes by using our map of Radon Affected Areas - Map (JPG, 562KB) or by contacting the Environment Team.
How can I find out what are the radon levels in my home?
The best guide to the level of radon in a building is a measurement. Currently the cost for this service is around £50, which includes the test kit and analysis.
For more information about radon measurement see Public Health England website http://www.ukradon.org/.
Or contact the Environment Team for further help and advice about radon and radiation or pollution in general.