Radon data: radon potential dataset

BGS Datasets

Key information

Scale:
1:50 000
Coverage:
Great Britain and Northern Ireland
Availability:
Licensed
Format:
GIS polygon data. (ESRI, MapInfo, other available by request)
Price:

£0.30 per km2. Subject to number of users, licence fee and data preparation fee.

Uses:
Local-level to regional-level use

The Radon data: radon potential dataset is the definitive map of radon affected areas in Great Britain and Northern Ireland, created jointly by Public Health England (PHE) and the BGS using long-term radon measurements made in over 479 000 homes across Great Britain and 23 000 homes across Northern Ireland (without affecting householders’ confidentiality), combined with geological map data.

The dataset includes a built-in 75 m ‘buffer’; this comprises 50 m to allow for the margin of error in the geological lines plus a further 25 m to represent the average extent of a home.

PHE recommends that radon levels should be reduced in homes where the annual average is at or above 200 becquerels per cubic metre (200 Bq/m3)  – this is termed the ‘radon action level’.

PHE defines radon affected areas as ‘those with one per cent chance or more of a house having a radon concentration at or above the radon action level of 200 Bq/m3‘.

The radon potential dataset answers the following questions:

  • Is a property in a radon affected area?
  • What level of radon protective measures do I need to install if I am building a new building or an extension to an existing building?

Get in touch

For more information about our datasets, technologies and map viewers please contact us

You may also be interested in:

BGS Geology 250k sample

Datasets

We have a wide range of licensed geoscience data. The datasets range from the geological data family (BGS Geology) to offshore data, ground stability datasets and 3D models.

Show more
rec3

Radon data: Indicative Atlas of Radon

Radon is a natural radioactive gas, which enters buildings from the ground. Exposure to high concentrations increases the risk of lung cancer.

Show more

Was this page helpful?

  • How can we make this section better?*

  • Please select a reason*

  • How can we make this section better?*