Radon test is vital for all homeowners

AS a former scientific secretary of the International Commission on Radiological Protection I am concerned at the very high levels of radon found in some parts of the country (September 17).

Leaving aside the high levels found in some areas, radon exposes the population as a whole to by far the highest level of any form of radiation.

In fact, we now know the average person receives more than half of his or her total radiation exposure from radon.