Radon Maps for Scotland

Overview

Public Health England and the British Geological Survey have jointly produced detailed mapping of radon potential in Scotland. This is the primary UK resource for radon advice, and it provides maps identifying probable radon affected areas.

The Technical Handbooks refer to these radon maps, which can be viewed on the UKradon website, linked in Related Sites. The digital map shows areas in Scotland with elevated radon potential. It was prepared using the action level of 200 Bq/m³, and gives an indicative picture of where radon levels are likely to be higher. It may also be consulted for non-domestic buildings.

What is radon

Radon is a naturally occurring, radioactive, colourless, and odourless gas. It forms in areas where uranium and radium are present in the ground, and can move through cracks and fissures in the subsoil into buildings. Radon activity is measured in becquerels (Bq).

Long-term exposure to high levels of radon increases the risk of lung cancer.

Protective measures

New buildings, extensions, and conversions in areas with radon potential may need protective measures.

Where needed, these measures should follow BRE publication BR 211 (2023 edition), Radon: Guidance on Protective Measures for New Buildings.

Further guidance is available in:

• BRE Good Building Guide GG 73, Radon protection for new domestic extensions and conservatories with solid concrete ground floors
• BRE Good Building Guide GG 74, Radon protection for dwellings
• BRE publication FB 41, Radon in the Workplace: A Guide for Building Owners and Managers
• BRE Good Building Guide GG 75, Radon Protection for New Large Buildings

These should be read alongside BR 211.