To ask the Scottish Executive whether it is aware of the findings of the latest British Medical Journal report on radon and, if so, what new measures it intends to implement to combat radon build-up in homes.
The Executive is aware of this important article which provides a combinedanalysis of the data from 13 case-control studies of residential radon and lungcancer in nine European countries. The results of this analysis confirmthat radon gas is an important public health hazard, the second most importantcause of lung cancer so far identified, after smoking and, in particular,estimates that radon in homes currently accounts for about 9% of deaths from lung cancer and hence 2% of all cancer deaths in Europe.
The National Radiological Protection Board will consider the implications of this study on current guidelines for radon preventative and remedial measures and give advice if necessary. A sub-group of the board’s independent advisory group on Ionising Radiation is currently conducting a review of the risks of radon exposure which will include this new study. The board will receive advice from this sub-group and will then consider, consult and issue advice on any changes that should be made to the UK scheme for controlling radon exposures.
In addition, the Executive has commissioned the board to complete its survey of radon, in housing across Scotland, at a cost of £303,000 and to update its advice on the radiological significance of levels of radon in Scotland accordingly. The survey findings will be available later in the year.
Both the existing UK housing stock and new homes are considered in measures to control the radon risk to the population in areas where radon concentrations are likely to be high. The Building Regulations require that in certain parts of the country anti-radon preventative measures must be incorporated into new houses as they are being built. Public and private initiatives have involved testing almost half a million homes in the UK with a recommendation that remedial measures areundertaken if radon levels are found to be above the action level of 200becquerels per cubic metre for radon in homes. Local authorities can assistwith grant, owners who cannot afford to meet the cost of remedial works.