Download emission maps
Download Emission Map Data for Nitrogen oxides (NOx expressed as NO2) in 2021
Area source data in ASCII format for Nitrogen oxides (NOx expressed as NO2) (ZIP)
Point source data for the UK (XLSX)
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Information for Area Source Data Files
The zipped files provided here are ASCII Grid format files, which can be used in most GIS software. Each zip file contains pollutant-specific gridded emissions for year 2021 by CORINAIR SNAP sectors. Note that some pollutants might not contain emission maps on some sectors (not all sectors generate emissions).
The sectors are labelled as follows:
energyprod - SNAP 01 (Combustion in Energy Production and Transformation)
domcom - SNAP 02 (Combustion in Commercial, Institutional, Residential and Agriculture)
indcom - SNAP 03 (Combustion in Industry)
indproc - SNAP 04 (Production Processes)
offshore - SNAP 05 (Extraction and Distribution of Fossil Fuels)
solvents - SNAP 06 (Solvent Use)
roadtrans - SNAP 07 (Road Transport)
othertrans - SNAP 08 (Other Transport and Mobile machinery)
waste - SNAP 09 (Waste Treatment and Disposal)
agric - SNAP 10 (Agriculture, Forestry and Landuse Change)
nature - SNAP 11 (Nature)
totarea - Total area sources (sum of all the above grids)
total - Total emissions (including point sources)
All data on this site is derived from mapping data provided by one of the UK national mapping agencies and other organisations. Downloads for Great Britain are made available and licenced under the Open Government Licence.
This data is based on and include information from:
- Ordnance Survey (GB) data © Crown copyright and database right 2023
- Royal Mail (GB) data © Royal Mail copyright and database right 2023
- National Statistics (GB) data © Crown copyright and database right 2023
© Crown copyright and database rights 2022 licenced under BEIS's Public Sector Mapping Agreement with Ordnance Survey (licence No. 100037028) and Defra's Public Sector Mapping Agreement with Ordnance Survey (licence No. 100022861).
For Northern Ireland only: This is Crown Copyright and reproduced with the permission of Land & Property Services under delegated authority from the Controller of His Majesty's Stationery Office © Crown Copyright and database right 2023 INSP594.
Ordnance Survey of Northern Ireland (OSNI) branded Land & Property Services (LPS) mapping (or any mapping based on, or derived from OSNI branded mapping) is exempt from the terms of the OGL.
If you intend to use or re-use this information you need to apply to firstname.lastname@example.org for an appropriate licence.
Page last modified: 27 March 2020