Update August 2025: The LAEI 2019 has now been superseded. Click here to access the LAEI 2022 data The LAEI 2019 is the latest version of the London Atmospheric Emissions Inventory and replaces previous versions of the inventory. Emissions estimates of key pollutants (NOx, PM10, PM2.5 and CO2) by source type are included for the base year 2019 and forecast...

The LAEI 2016 has been superseded. Click here for the full list of releases. Emissions estimates of key pollutants (NOx, PM10, PM2.5 and CO2) by source type are included for the base year 2016. Emissions for previous years 2010 and 2013 have also been recalculated, using the latest data sources (emission factors, activity data, ...) and methodology. Emissions projected...