An overview of issues in the reduction of UK radon exposure

Radon is the second largest cause of lung cancer after cigarette smoking and is estimated to be responsible for between about 3 and 5 per cent of UK lung cancer deaths. This risk is larger than many about which people frequently show concern and will often act to reduce. Radon can also accumulate in workplaces to levels at which action is required by UK legislation. It is important, therefore, to understand the factors that contribute to these doses, how they can be reduced and to develop effective programmes to reduce excessive exposures. The National Radiological Protection Board (NRPB) provides a national point of reference on the risks and measurement of radon, evaluates the effectiveness of remedial programmes and works closely with many other groups to highlight and promote measures that are effective in reducing radon levels.