Review and Assessment: Tools



This page provides tools to assist local authorities with the local air quality Review and Assessment process. These include tools to assist with assessment of air quality – including:

  • Vehicle Emissions Factors Toolkit for road transport
  • NOx/NO2 Calculator
  • Diffusion tube related tools (bias and precision, exposure calendars)
  • Volatile Correction Model (VCM) for TEOM based PM10 monitoring data
  • Background maps
  • Monitoring data tools including NO2 distance calculator 
  • Roadside NO2 Projection Factors
  • Emissions (including industrial nomograms and biomass calculator)
  • Modelling (including DMRB)
  • Tools can be found using the menus on the left hand side, or alternatively a List of Tools [PDF, 273KB] is available to download.  It is important however to check the What's new webpage regularly for updates or ask the Helpdesk if you are unsure.

    The tools are available to download in a variety of file formats although mainly in .pdf and .xls formats. Some basic information about how to download files is available from the Defra help pages.

    Some of the tools contain macros and some users of MS Excel may need to alter their macro security settings to get these tools to run.

    In addition to the tools shown on this page the links on the side navigation will take you to specific sections where detailed information is provided.