Research and analysis

Radon: indicative atlas in England and Wales

This report (HPA-RPD-033) is a radon atlas showing the bands of radon risk in each 1 kilometre grid square of England and Wales.

Documents

Detail

This report presents an overview of the results of detailed mapping in England and Wales of radon potential, defined as the estimated percentage of homes in an area above the radon action Level. The work was carried out jointly by the Health Protection Agency (now Public Health England) and the British Geological Survey, and was based on the results of measurements of radon in 460,000 homes.

The method allows variations in radon potential both between and within geological units to be mapped. The resulting map, which defines radon affected areas in England and Wales, includes much more detail than could be shown in an atlas. The full detail is instead published as a dataset which can be licensed for use in geographical information systems. The estimated radon potential for an individual home can be obtained from UKradon.

The atlas presents a simplified version of the map, so is indicative rather than definitive: that is, each 1 km grid square is coloured according to the highest radon potential found within it.

The copyright of this report is held jointly by the Health Protection Agency (now Public Health England) and the British Geological Survey.

Map quality

Users should note that the quality of the maps has been downgraded to permit ease of download.

The hard-copy radon atlas is printed:

  • in full colour
  • to a higher resolution