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Crown Copyright 2018

The material on this site is protected by Crown copyright, unless it says otherwise. The copyright in some of the material which may be found on the site has been waived, meaning you can reproduce this material freely. Categories of material for which copyright has been waived include: government press notices, legislation and explanatory notes on the legislation, ministerial speeches, consultation documents, documents featured on official websites (except where expressly indicated otherwise), headline statistics and unpublished public records. More details of these and other categories can be found at: HMSO's WebsiteThis link opens in a new window

For other types of material however, the supply of documents does not give the person or organisation who receives them an automatic right to re-use the documents in a way that would infringe copyright, for example, by making multiple copies, publishing and issuing copies to the public. Brief extracts of any of the material included on this site may be reproduced under the fair dealing provisions of the Copyright, Designs and Patents Act 1988 (sections 29 and 30) for the purposes of research for non-commercial purposes, private study, criticism, review and news reporting. The permission to reproduce Crown-protected material does not cover any material on this site that is identified as being the copyright of another person or organisation. You must get permission to produce that material from the copyright holders. If in any doubt users should contact Her Majesty's Stationery Office in the first instance.
Details of the arrangements for reusing Crown copyright material can be found on HMSO's website at: HMSO's WebsiteThis link opens in a new window or by contacting Her Majesty's Stationery Office at:

Her Majesty's Stationary Office
Licensing Division
St Clements House
2-16 Colegate

Tel: 01603 621000
Fax: 01603 723000

Other Copyright and Content Disclaimer

These web pages have been developed by Ricardo-AEA under contract to The Welsh Air Quality Forum. Any reproduction for commercial use of maps, graphics, reports, files and text contained herein may be subject to copyright, and requests for such use should be directed to for consideration. Any data downloaded from these pages are freely available for public use, with acknowledgement of this web site as the source.

The information contained within this web site is provided in good faith and in no event shall Ricardo-AEA or The Welsh Air Quality Forum be liable for any damages, including those resulting from lost data, profits or revenue, the costs of recovering such data, the costs of substitute data, claims by third parties or for other similar costs arising out of the use of the data. The software and databases supporting this web site are the property of Ricardo-AEA The Welsh Air Quality Forum.