Every year, over 9,000 Londoners are dying prematurely from long-term exposure to air pollution and our latest research shows that hundreds of schools are located in areas exceeding safe legal pollution levels.

The GLA and TfL work in partnership to produce a comprehensive set of air quality datasets. These enable our organisations to formulate evidence-based policy and guide boroughs as they improve air quality locally.

London Atmospheric Emissions Inventory (LAEI)

The LAEI is the key tool for air quality analysis and policy development in London. It is a regularly updated database of pollutant emissions and sources including geographically referenced data and maps.

London Local Air Quality Management (LLAQM)

The LLAQM is a collection of maps, data and graphs produced individually for each of London’s boroughs and the City of London. It is produced using the latest version of the LAEI.