Key information
Request reference number: MGLA051222-4883
Date of response:
Summary of request
Your request
Please supply under FOI the evidence you hold that confirms the air quality before and after ULEZ being implemented
Our response
The GLA regularly reports on air quality trends in London, including evaluating the impact of the ULEZ on London’s air quality. This reporting uses data from the city’s air quality monitoring network to analyse the long term trends in pollution concentrations and well as estimating the impacts of the scheme. The most recent modelling is the London Atmospheric Emissions Inventory (LAEI) 2019. The LAEI summary note includes maps of pollution levels across the city. You can access the data on the London Datastore: London Atmospheric Emissions Inventory (LAEI) 2019 - London Datastore
The GLA has published a series of reports evaluating the impact of the central ULEZ and the expanded ULEZ. The latest report was published in July 2022 and includes pollution and vehicle composition data as well as early estimates for traffic impacts up to May 2022. You can read the report on the GLA website and find links to earlier reports within: Expanded Ultra Low Emission Zone Six Month Report | London City Hall