What is the Action Level for Radon and What is the risk at Action level?
The National Radiological Protection Board recommends that radon levels should be reduced in homes where the average is more than 200 becquerels per cubic metre. This recommendation has been endorsed by the Government. 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.
