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Step 1 of 3
• Emission Factors are available for 2008.
• You can select more than one source by holding down the Shift or Ctrl keys during selection.
• The road transport emission factors in the emission factor database are in units used to calculate the emissions in the NAEI. A more user friendly road transport emission factor data sheet will be available for the 2008 NAEI soon.
• If some emission factors are missing in this database it is either because the methodology used in the NAEI is not based on the sum of emission factors and activity values or the data is confidential.
Please complete the following steps to select the emission factors you require:
Year Year 2008
Select your Pollution Source
Home Data Warehouse FAQs UK Greenhouse Gas
Reports Methodology Links UK Air Quality Archive
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This service is part of the UK National Atmospheric Emissions Inventory maintained by AEA on behalf of Defra and the Devolved Administrations.