0 a chemical element that is a radioactive gas formed when radium decays and found naturally in rock and soil: --
1 a colorless radioactive gas that is formed when radium (= a chemical element) and some other substances break down --
The survey involves the use of a simple kit to test for radon.
One of our greatest problems at present is radon gas.
There is no reliable method of predicting radon levels from site measurements before house construction.
However, there is no national programme of radon monitoring for our schools.
It is my view that free radon measurements should be made available to householders living in high radon areas.
It has been known for a long time that occupational exposure to radon in uranium mines is associated with an increased incidence of lung cancer.
This is the radon concentration at which it is recommended that remedial action be taken to reduce levels in the home.
These invitations will ensure that every household in the most radon-affected parts of the country will have been offered a free radon measurement.
