R&A SUPPORT
This page hosts the nitrogen dioxide diffusion tube bias adjustment factor spreadsheet, a number of guidance documents and other reports which provide information for the review and assessment process.
NITROGEN DIOXIDE DIFFUSION TUBE BIAS ADJUSTMENT
GOVERNMENT AIR QUALITY MANAGEMENT GUIDANCE
NON-GOVERNMENT AIR QUALITY MANAGEMENT GUIDANCE
SUPPORTING REPORTS FOR REVIEW AND ASSESSMENT
EVALUATION OF REVIEW AND ASSESSMENT 2007
Nitrogen Dioxide Diffusion Tube Bias Adjustment
(data last updated 13/11/2008)
How and Why Should I Adjust Diffusion Tube Bias?
How Were These Factors Calculated?
How Can I Add My Own Data to This Database? *Questionnaire*
Download Spreadsheet of Bias Adjustment Factors (v.11/08)
What should I do with information on diffusion tube precision? New Diffusion Tube Precision Summary 2006 – 2007
PLEASE MAKE SURE THAT YOUR DIFFUSION TUBES ARE LOCATED ACCORDING TO THE LATEST GUIDANCE HERE
Emission Factors Toolkit allows calculation of road traffic exhaust emissions for different vehicle categories and splits, at various speeds, and on different road types. Two versions are available, Version 3a is the latest version available which allows for multiple road traffic data to be input. A previous version (2e) is also available to download which allows for detailed emissions from one road to be estimated. Please note that this is not THE NEW EMISSION FACTOR TOOLKIT.
Emissions Factor Toolkits Multiple Link Version [3a]
Emissions Factor Toolkits Single link version [2e]
GOVERNMENT AIR QUALITY MANAGEMENT GUIDANCE
Technical Guidance LAQM.TG(03) (PDF: 1.6 MB)
Policy Guidance LAQM.PG(03) England and Wales (PDF: 270kb)
Addendum to Local Air Quality Management Guidance LAQM.PGA(05) England (PDF:230kb)
Policy Guidance LAQM.PG(S)(03) Scotland
Policy Guidance for Northern Ireland LAQM.PGNI(03)
Progress Report Guidance LAQM.PRG(03)
Progress Report Guidance for Northern Ireland LAQM.PRGNI(04)
Further Assessment Guidance (Stage 4 Guidance)
Summary flow diagrams of Updating and Screening Assessment and Detailed Assessment
NON-GOVERNMENT AIR QUALITY MANAGEMENT GUIDANCE
NSCA Guidance on Declaring AQMAs: Turning Reviews into Action
NSCA Guidance on Air Quality Action Plans: Interim Guidance Part 2 Guidance
NSCA Guidance on Air Quality and Planning : Planning for Air Quality
SUPPORTING REPORTS FOR REVIEW AND ASSESSMENT
Analysis of the relationship between hourly and annual mean NO2
NO2 Diffusion Tube performance report
Method for Converting NOx to NO2
EVALUATION OF REVIEW AND ASSESSMENT 2007
Evaluation of Review and Assessment Support Services - Report (2007)
The evaluation led to 12 recommendations. Defra and the Devolved Administrations have considered these recommendations and have set out responses for each of them. The table setting out the responses is available here. A full report can be viewed here.
Evaluation of the Action Planning Process - Report (2007)
The evaluation led to 11 recommendations. Defra and the Devolved Administrations have considered these recommendations and have set out responses for each of them. The table setting out the responses is available here. A full report can be viewed here.
AQEG REPORTS (Defra link)
Nitrogen dioxide in the United Kingdom
Particulate Matter in the United Kingdom
Air Quality & Climate Change: a UK perspective
Method for Converting NOx to NO2 (2002 report)
This material on this site is subject to Crown Copyright protection. The Crown Copyright protected material may be reproduced free of charge in any format or media without requiring specific permission. This is subject to the material being reproduced accurately and not being used in a derogatory manner or in a misleading context. Where the material is being published or issued to others, the source (including URL) and copyright status must be acknowledged.
Site prepared for the
Department for Environment, Food and Rural Affairs, Welsh Assembly Government, Scottish Executive, Department of Environment (Northern Ireland) and Greater London Authority by the AQM Resource Centre (UWE), and Air Quality Consultants Ltd.
E-mail help desk : aqm-review@uwe.ac.uk
Last updated 12/12/08.
