Radon potential for Great Britain version 3
Radon is a natural radioactive gas, which enters buildings from the ground. The joint UK Health Security Agency (UKHSA) (formerly Public Health England (PHE)) - British Geological Survey (BGS) digital dataset Radon Potential for Great Britain provides the current definitive map of radon Affected Areas in Great Britain. Exposure to high concentrations increases the risk of lung cancer. UK Health Security Agency (formerly PHE) recommends that radon levels should be reduced in homes where the annual average is at or above 200 becquerels per cubic metre (200 Bq m-3). This is termed the Action Level. The UKHSA defines radon Affected Areas as those with 1% chance or more of a house having a radon concentration at or above the Action Level of 200 Bq m-3. The dataset allows an estimate to be made of the probability that an individual property is at or above the Action Level for radon. This information 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 a Radon Affected Area. Radon Potential for Great Britain also provides information on the level of protection required for new buildings as described in the latest Building Research Establishment guidance on radon protective measures for new buildings (Radon: guidance on protective measures for new dwellings; BR 211, 2015 in Scotland, England, Wales and Northern Ireland). This radon potential hazard information for Great Britain is based on UKHSA indoor radon measurements and BGS digital geology information. This product was derived from BGS Geology 50k (formerly known as DigMap50k) version 8 and UKHSA in-house radon measurement data. The indoor radon data is used with the agreement of the UKHSA. Confidentiality of measurement locations is maintained through data management practices. Access to the data is under licence.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2021-07-01
British Geological Survey
-Enquiries
Environmental Science Centre, Nicker Hill, Keyworth
,NOTTINGHAM
,NOTTINGHAMSHIRE
,NG12 5GG
,United Kingdom
0115 936 3276
British Geological Survey
-Enquiries
Environmental Science Centre, Nicker Hill, Keyworth
,NOTTINGHAM
,NOTTINGHAMSHIRE
,NG12 5GG
,United Kingdom
0115 936 3276
- Maintenance and update frequency
- notPlanned
- GEMET - INSPIRE themes
- BGS Thesaurus of Geosciences
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Geochemistry
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Radon protection
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Radon potential
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Natural hazards
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- Keywords
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NERC_DDC
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- Limitations on Public Access
- otherRestrictions
- Other constraints
- license
- Use constraints
- otherRestrictions
- Other constraints
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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 any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
- Other constraints
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The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage. iprdigital@bgs.ac The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage.
- Spatial representation type
- vector
- Topic category
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- Geoscientific information
- Extent
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GBN
- Dataset Reference Date ()
- 2009
- Extent
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GREAT BRITAIN [id=139600]
- Dataset Reference Date ()
- 1979
))
- End date
- 2021-07
Spatial Reference System
Distribution Information
- Data format
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ESRI Shapefile
()
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- Resource Locator
- Digital Object Identifier (DOI)
- Resource Locator
- BGS Datasets - Radon potential Homepage
- Resource Locator
- Digital Object Identifier (DOI)
- Resource Locator
- BGS Datasets - Radon potential Homepage
- Quality Scope
- dataset
- Other
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dataset
Report
- Dataset Reference Date ()
- 2011
- Explanation
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See the referenced specification
- Degree
Report
- Dataset Reference Date ()
- 2010-12-08
- Explanation
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See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Degree
- Statement
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The radon potential dataset is derived by combining a simplified version of the geology of Great Britain (BGS Geology 50 version 8) with indoor radon measurement data collected by UK Health Security Agency (previously Public Health England (PHE). The land area is first divided up into simplified geologies, a combination of bedrock and superficial geological characteristics, derived from BGS GeologyGB-50 (1: 50 000 scale) digital geological map data. A code bedrock/superficial (BS) code is assigned to each of them. Each different simplified geology may appear at the land surface in many discontinuous locations across the country. Each simplified geology is then divided in 1 Km squares by using the OS British National Grid. From this division results a list of spatially referenced KMBS (a simplification of 1 Km2 / BS) polygons containing information about both the simplified geology and the BNG 1km square. UK Health Security Agency has a database of houses in which long-term (3 to 6 months) measurements of radon concentration have been made, and whose locations are accurately known. Each of these measurements is allocated to the underlying geological polygon followed by actual measurements' coordinates stripping off. This procedure allows for anonymization of house data. Taking each simplified geology in turn, the spatial variation of radon potential is mapped, treating the geology as if it were continuous over the land area. Bedrock, stratigraphic (order in which rock layers are laid down) or lithological (rock characteristics) generalisations of the simplified geologies may be required to assure that the number of radon measurements is enough to estimation the radon potential. All of the maps of radon potential within different simplified geologies are then combined to produce a map of variation in radon potential over the whole land surface. This dataset formed the raw data on which processing was carried out to ensure all end-users would achieve consistent results. All data processing was carried out using ESRI ArcGIS 10.7 software.
Metadata
- File identifier
- e943ecb2-c82e-240b-e053-0937940ac5ca XML
- Metadata Language
- English (en)
- Resource type
- dataset
- Metadata Date
- 2023-06-27
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
British Geological Survey
Environmental Science Centre,Keyworth
,NOTTINGHAM
,NOTTINGHAMSHIRE
,NG12 5GG
,United Kingdom