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- England indexNeighbourhood
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- Most deprived 10%Council
- Most deprived 20%Council
- England scoreNeighbourhood
- NI indexNeighbourhood
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- Scotland indexNeighbourhood
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- Wales indexNeighbourhood
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- Number of schoolsCouncil
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Overlays

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Environment/

1 km grid

As at 19 Oct 2026

200 km

100 km

100 km

1 km grid
As at 19 October 2026
The chance of high radon in a 1 km square, not a reading of any home

BGS and UKHSA·© OpenStreetMap

Search places and data

© OpenStreetMap

Radon potential

1 km grid, As at 19 Oct 2026

Radon potential

Indicative atlas of radon (Great Britain and Northern Ireland). As at 19 October 2026

Under 1% of homes
1% to 3% of homes
3% to 5% of homes
5% to 10% of homes
10% to 30% of homes
30% or more of homes

Pick a square on the map to see what is known about it.

Radon map of the UK: every 1 km square

The radon class of every 1 km square in the UK, from the UK Health Security Agency and British Geological Survey's indicative atlas of radon. Mapped on a 1 km grid across the UK. Source: BGS and UKHSA.

EWSNI1 km gridAs at 19 October 2026

© OpenStreetMap