Important changes to the Radon Dataset

A new Radon Potential Dataset has been released, developed by the British Geological Survey (BGS) and the UK Health Security Agency (UKHSA – formerly known as Public Health England).  

Radon is a colourless, odourless radioactive gas. It’s made by the decay of small amounts of uranium that occur naturally in all rocks and soils and is everywhere. Studies have shown that increased exposure increases your risk of developing lung cancer.  

Certain types of rock like granite, release more of the gas through cracks and faults in the rock. Just like any gas, radon moves freely through the air, groundwater, and surface water, and is drawn into homes and buildings through small cracks or holes by warm air.

This is the first update to the dataset in more than 10 years. The new dataset combines 560,740 indoor radon measurements and updated geology provided by the BGS to create a more accurate map of potential radon gas exposure across England and Wales. It is important to note that potential radon emission levels have not increased in the UK, nor has the overall number of affected buildings, but the accuracy of where radon might be found has improved.  

This new data will be used in Groundsure’s residential and commercial environmental search reports, with a few exceptions*. The reports will give your clients a clearer picture of any potential risks caused by radon levels. The risk of developing lung cancer is low and most buildings in the UK are found in areas of low radon levels, but it is important for home buyers to be aware of any potential risk. There are several methods that can be implemented to reduce high radon levels in buildings, including ventilation bricks, a sump or a plastic membrane, if necessary.

You can find more information about the updates here.

Click here to view the updated maps.

If you would like to find out more about how this might affect your clients, contact your Account Manager, or contact us here.  

*The exceptions include Flood, Floodview, CON29M, Cheshire Salt Search, Energy and Transportation.