Enda Kenny (Mayo, Fine Gael) | Oireachtas source

Radon is a naturally occurring gas as the Deputy is aware. This issue has been raised over the years. When local authorities issue planning permission for individual or group housing they should always send out an information leaflet for persons to contact the Radiological Protection Institute of Ireland for analysis of the location where they intend to build in respect of the extent or incidence of radon which might apply. It is a naturally occurring gas and has direct implications for cancer deaths in the country. It is an entirely different matter to the pyrite issue which has been the focus of much attention in recent times. Preventative measures can be taken to deal with the question of radon gas and quite a number of companies throughout the country supply facilities to deal with it.

See this speech in context