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Radon Gas: Houses

Volume 496: debated on Wednesday 15 July 2009

To ask the Secretary of State for Health what recent estimate he has made of the number and location of households liable to be affected by high levels of radon gas; and if he will make a statement. (284406)

The Health Protection Agency (HPA) estimate that approximately 100,000 homes in the UK exceed the action level of 200 Bequerels/m3 and the location of houses above the action level is shown in a map taken from the 2008 HPA Indicative Atlas of Radon in England and Wales (see following web link). The complete atlas has more detailed information if needed. Only 0.2 per cent. of houses are above the action level.

The HPA is currently carrying out a public consultation exercise on whether the action level should be reduced, among other questions.

Householders and employers are able to find out the risk of a high radon gas level in a property from the radon probability maps of the United Kingdom published by the HPA and, for England and Wales, the British Geological Survey.