Radon Potential Map for Great Britain Version 2.1

British Geological Survey and Public Health England provide a superseded radon potential hazard map for Great Britain. The dataset estimates the probability a property exceeds the 200 Bq m-3 radon Action Level, based on indoor radon measurements and digital geology. It addresses legal property enquiries and informs building protection standards.

Use Cases

• Identify radon Affected Areas where there is a 1% or greater chance a house exceeds the Action Level for legal property enquiries (CON29).
• Estimate the probability an individual property is at or above the 200 Bq m-3 radon Action Level using combined geology and radon measurement data.
• Inform required radon protection levels for new buildings according to Building Research Establishment guidance BR 211.

Strengths

• Definitive map of radon Affected Areas for Great Britain produced by authoritative bodies BGS and PHE.
• Derived from BGS Geology 50 digital geology data and PHE's in-house radon measurement database.

Limitations

• Dataset is superseded by a newer version (Radon Potential for Great Britain version 3).
• Confidentiality practices for measurement locations may limit granular spatial analysis.

Provenance

Source

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

Collection Method

Derived from BGS Geology 50 digital geology and PHE indoor radon measurements.

Time Range

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Freshness

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Geography

Great Britain (England, Wales, Scotland).