Update August 2025: The LAEI 2019 has now been superseded.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The LAEI 2010 has since been superseded. Click here for the full list of releases. There are 187 Air Quality Focus Areas in the Capital. These are locations that not only exceed the EU annual mean limit value for NO2 but are also locations with high human exposure. The Focus Areas were defined to address concerns raised by boroughs within the...