Indicative Radon Potential Map for Great Britain

1-kilometer grid squares across Great Britain are classified by their highest estimated radon potential. This joint Public Health England and British Geological Survey atlas defines Affected Areas as locations with a 1% or greater chance of a home exceeding the radon Action Level of 200 Bq m-³.

Use Cases

• Identify 1-km grid squares classified as radon Affected Areas for regional public health planning and building regulation guidance.
• Analyze the spatial distribution of the highest radon potential found within each grid square for geological hazard mapping.
• Cross-reference grid square classifications with the radon Action Level of 200 Bq m-³ to model population exposure risk.

Strengths

• Data is produced by authoritative organizations: Public Health England and the British Geological Survey.
• Provides a simplified, national-scale overview with classifications for each 1-km grid square across Great Britain.
• Defines a clear, health-based threshold (Action Level of 200 Bq m-³) for identifying Affected Areas.

Limitations

• The atlas is indicative rather than definitive, with each square classed by the highest potential found within it, which may overestimate risk for parts of the square.
• The underlying detailed mapping and potential percentages for specific locations are not included in this simplified atlas.
• The publication dates for the constituent maps (2007 for England/Wales, 2011 for Scotland) suggest the core data may be temporally stale.

Provenance

Source

British Geological Survey (BGS) and Public Health England (PHE).

Collection Method

Simplified classification from detailed radon potential mapping, with each 1-km grid square assigned the highest potential found within it.

Time Range

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Freshness

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Geography

Great Britain (England, Wales, Scotland).