dataset · United Kingdom

Public Health England (PHE) - British Geological Survey (BGS) Joint Radon Dataset for England and Wales

The joint PHE-BGS digital radon potential dataset provides the current definitive map of radon Affected Areas in England and Wales. It will also allow an estimate to be made of the probability that an individual property in England and Wales is at or above the Action Level for radon. This information also provides an answer to one of the standard legal enquiries on house purchase in England and Wales, known as CON29 standard Enquiry of Local Authority; 3.13 Radon Gas: Location of the Property in

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Source details

Licence: ["The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in an

Evidence quality: 37.6

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified: radon Affected Areas map for England and Wales · probability estimate that a property is at or above the Action Level for radon (200 Bq m-3) · level of radon protection required for new buildings (BR 211 2007 guidance)
Coverage docs-verified: England and Wales
Update frequency docs-verified: Not planned (no scheduled updates)
Access docs-verified: Restricted access; copyright vested in NERC (BGS), no reproduction or transmission without prior permission of the copyright holder; licence field not set

Useful for

Use cases llm-inferred: CON29 3.13 radon search response for property purchase and conveyancing enquiries · radon protective measures specification for new-build ground-floor design under BR 211 · desk-study radon screening within Phase 1 ground-gas and contamination assessments
Audience llm-inferred: environmental consultants · geotechnical engineers · planners · land and property due diligence teams

Limitations

Constraints docs-verified: Superseded by the PHE-BGS Joint Radon Potential Dataset For Great Britain · Access restricted; permission from the copyright holder needed to reproduce or transmit · No planned updates · Built from PHE indoor radon data used with PHE agreement; measurement locations kept confidential · No warranty as to quality or accuracy; use is at the customer's own risk · Catalogue description calls it the current definitive map, which conflicts with the superseded notice in the docs

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.