Occupants will not notice the presence of radon, be it in large or in small quantities. In most cases, the gas is not harmful. The problems emerge when there is a lack of ventilation, combined with long-term exposure, in which case it can cause lung cancer. Official figures say that radon kills 480 Belgians each year.
Radon can be a problem in old houses, but also in new constructions such as low- or zero-emission houses. The FANC is setting up a new campaign called Actie 2014 to alert the public.
"It is especially important to realise that a house has to be aired sufficiently. For new constructions, adequate measures should be taken to prevent that radon is emitted, for example by way of an air-tight floor. If people should have any doubts, they can buy the equipment to measure the presence of radon and check for themselves", says expert Boris Dehandschutter of the FANC.