Radon gas is a naturally occurring, colourless, odourless and tasteless radioactive gas that comes from the decay of radium, which in turn comes from the decay of uranium contained in rocks such as granite. It has the ability to adhere to dust particles gravitating in the air and can enter and accumulate in the lungs.
In order to protect the population from the health risk of radon gas accumulation in buildings, the Ministry of Public Works is preparing a draft Royal Decree to amend Part I of the Technical Building Code to include radon protection in enclosed building enclosures as a regulatory requirement.
The European Union, through EURATOM Directive 59/2013, establishes the obligation to draw up a National Radon Action Plan to address long-term risks due to exposures in dwellings, publicly accessible buildings and workplaces. It limits the maximum indoor radon concentration by setting a reference level for the annual average activity concentration in air of 300 Bq/m3.
