Did you know that this is Radon Awareness Week? No, us neither – which may go some way towards explaining why a survey of 2,000 respondents conducted in October 2021 by indoor air quality experts, Airthings, revealed the extent of the lack of awareness of radon and the risks it poses to health.

Nearly four out of five Brits do not know or are not sure about the dangers of radon in a home and fewer than one in ten know that radon exposure can lead to lung cancer.

Each years there are about 20,000 radon-related lung cancer deaths across the Europe.

According to the UK Health Security Agency, exposure to Radon gas is the leading cause of lung cancer among non-smokers and is responsible for at least 1,100 deaths in the UK every year; more than three times the number of deaths attributed annually to house fires and carbon monoxide poisoning combined.

High levels of radon can be found in buildings of any type, size or location,with occupants unaware of the potential danger unless it is being monitored.

Wales and the South-West of England are especially at risk of being exposed to high levels of radon, according to a radon map published by Public Health England.

Other parts of the country most likely to be exposed include Cumbria, Newcastle, and Northumberland, whilst areas in Scotland and Northern Ireland are also under threat. Similarly, the Cotswolds was recently dubbed a radon hotspot.

Radon typically enters a building because the air pressure within a building is usually lower than the pressure in the soil and rocks around the building’s foundation.

Radon finds its way in through a process referred to as advection. This is where the gas moves from a point of higher pressure (the ground, soil and rocks) to a point of lower pressure (the building). The difference in pressure causes the building to act as a vacuum, drawing radon in through foundation cracks and other openings. It is at this point that the radon becomes trapped within the building and where the levels can start to build up.

The only way to know whether elevated levels of radon are present is to use a device which monitors radon levels in a property for a period of time.

“We are the market leader in radon and indoor air quality solutions around the world. It is evident from the survey findings that in the UK there is very little awareness of the dangers radon gas exposure has to our health and Airthings is on a mission to change that,” says Oyvind Birkenes, CEO of Airthings, whose company produces  monitoring units for radon, particulates, and other air contaminents.

The UK Radon Association has a video from last year’s Awareness week about radon in the workplace: