General questions about radon What is radon? It is a naturally occurring radioactive gas which has no colour, smell or taste Where does radon come from? It comes from the minute amounts of uranium present in all earth materials such as rocks, soils, brick and concrete What are the effects of radon? An increased lifetime risk of lung cancer What is the Action Level for radon? The National Radiological Protection Board (NRPB) recommends that radon levels should be reduced in homes where the average is more than 200 becquerels per cubic metre (Bq/m3). This recommendation has been endorsed by the Government. What is the risk at the Action Level? People living all their lives at the Action Level run the risk of a few percent of developing lung cancer. On average, about one in thirty people exposed for a lifetime at the Action Level would be expected to develop lung cancer. Does radon cause leukaemia? The main danger from high radon exposure is the increased risk of lung cancer. If there is any risk of leukaemia, it is, by comparison, extremely small. Where can I obtain more advice on health risks associated with radon? NRPB can provide advice and guidance on the health risks associated with radon. Is radon a problem everywhere in the UK ? Radon is present in all parts of the UK, but in the most populous areas the levels are quite low. Some of the highest levels have been found in the south west, but levels well above average have been found in some other parts of England and parts of Scotland, Wales and Northern Ireland. However, even in these areas most homes have low levels. Is radon a problem in any other countries? Yes. All countries are affected to some degree by radon, but the problem is receiving particular attention in Sweden, the other Nordic countries, Germany and the USA. If you would like to speak to somebody about radon in the first instance please phone the Health Protection Agency Radon Hotline on 01235 822622. Arron Perry | May 2005| © copyright BRE 2000