It’s colourless, odourless and tasteless but high levels of this gas can increase the risk of cancer – and it occurs naturally in the land.
Public health officials say every building contains radon and levels are usually low, but there are hotspots across the country, caused by the type of ground buildings were constructed on.
An interactive map, provided by the UK Health Security Agency, can tell you whether you live in, or near, an area affected by high levels of radon gas.
The darker the colour, the greater the chance of a higher level of gas.
The risk is less than one home in a hundred in the white areas and greater than one in three in the darkest areas.
What is Radon gas?
Radon is formed by radioactive decay from the small amounts of uranium that can be found naturally in all rocks and soils. This means that it is everywhere.
However, public health officials say every building contains radon, and levels are usually low.
The chances of a higher level depending on the type of ground.
The radiation emitted from the elements can increase the risk of cancer and it appears that those living in rural areas are surrounded by more levels of this radioactive gas than urban areas like London.
An interactive map, found here, has been released revealing levels of radon radiation across the UK.
The darker the colour, the greater the chance of a higher level of gas.
The chance is less than one home in a hundred in the white areas and greater than one in three in the darkest areas.
How South East London is impacted by Radon gas?
Parts of South East London have signs of the gas, with noted spots in the areas of Dartford, Greenwich and Bexley with all three having a low risk of radon.
Seeing the boroughs in the bands of elevated radon potential, shown by the yellow shade, meaning there is a maximum radon potential of 1-3%.
Whilst nearly all of Bromley is in the lowest band of radon potential, at less than 1% of homes above the Action Level.
Elsewhere in Lewisham, the levels of the gas are similar to its neighbours, with an elevated radon potential and maximum radon potential of 1-3%.
Is Radon gas dangerous and am I at risk?
According to UKRadon, Radon produces a radioactive dust in the air that we breathe.
The dust traps in our airways and emits radiation that damages the inside of our lungs. This damage, like the damage caused by smoking, increases our risk of lung cancer.
The higher the radon and the longer the exposure, the greater the risk.
To reduce risk, UKRadon suggests you find out if you live in a Radon-risk area and if you do, measure your home. If the radon is high, reduce it and if you smoke, give up.
How to check Radon in your area
If you are concerned about the radon risk in your area, you can purchase a Radon Risk Report for £3.90 from the UK Government website. This will tell you if your home is in a Radon affected area.
If it is, the UK Government will recommend the radon concentration in your home being measured.
You will be posted two detectors to place in your home one in the living area and one in an occupied bedroom.
After three months you post the detectors back to the body in a prepaid envelope provided.
The detectors are analysed and the results are posted back to you. This will cost £52.80 and can be ordered through this link.
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