Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture·Page 15·3.6
Radon - naturally occurring radioactive gas
Radon is a naturally occurring colourless, odourless radioactive gas formed by uranium and radium decay that can enter buildings through the subsoil. Some areas of Northern Ireland have higher radon levels; prolonged exposure increases lung cancer risk and cannot be predicted prior to construction.
Radon is a naturally occurring radioactive colourless and odourless gas which is formed in small quantities by radioactive decay wherever uranium and radium are found. It can move through the subsoil and so into buildings. Some parts of Northern Ireland have higher levels than elsewhere.
Exposure to high levels of radon for long periods increases the risk of developing lung cancer.
It is not possible to predict the radon concentration in a dwelling to be built on a particular site prior to construction.
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