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Background Mapping data for local authorities 

Background Maps

These concentrations maps are provided to assist local authorities in support of Review and Assessment of local air quality.

To assist local authorities undertaking their air quality Review and Assessments, 2013-based background maps for years 2013 to 2030 for NOx, NO2, and PM10 are available below.  

Users should note that 2013-based maps now replace the 2011-based maps.  The 2013 reference year background maps are based on monitoring and meteorological data for 2013.  These have been produced to provide background maps in line with the baseline projections used in the 2015 national air quality plan for nitrogen dioxide.

For more information on the different versions of the background maps available, please refer to the Background Maps User Guide.  This also provides guidance on how to use the background maps and the associated tools. The tools that accompany the background maps can be found on the LAQM website.

NOx, NO2, PM10 and PM2.5 Background Maps

2013-based background maps for years 2013 to 2030 are available for NOx, NO2, PM10 and PM2.5 using the link below. This provides information about the maps, and will allow you to download a separate 1x1km grid file of concentrations for each local authority (per pollutant).  These maps should be used for all new air quality assessments.

2011-based background maps for years 2011 to 2030 are available for NOx, NO2, PM10 and PM2.5 using the link below. This provides information about the maps, and will allow you to download a separate 1x1km grid file of concentrations for each local authority (per pollutant).  These maps should be used for all new air quality assessments.

2010-based background maps for years 2010 to 2030 are available for NOx, NO2, PM10 and PM2.5 using the link below. This provides information about the maps, and will allow you to download a separate 1x1km grid file of concentrations for each local authority (per pollutant).  These maps should not be used for new air quality assessments, but can continue to be used for on-going assessments.

The 2008-based background maps for NOx, NO2, PM10 and PM2.5 are available using the link below, as these may be useful in some circumstances. These maps should not be used for new air quality assessments.

The 2006-based background maps for NOx, NO2, PM10 and PM2.5 are available using the link below as these may be useful in some circumstances.  These maps should not be used for new air quality assessments.

The 2004-based background maps for NOx, NO2, PM10 and PM2.5 are available using the link below as these may be useful in some circumstances. These maps should not be used for new air quality assessments.

SO2, CO, benzene and 1,3-butadiene Background Maps

Background maps for SO2, CO, benzene and 1,3-butadiene are based on 2001 base year.  These are downloadable from the link below: 

Please note that only data for SO2, CO, benzene and 1,3-butadiene should be used from these 2001-based background maps. Background information on NOx, NO2, and PM10, contained with these maps should not be used when undertaking air quality assessments.