The London Energy and Greenhouse Gas Inventory (LEGGI) is an emissions inventory which quantifies greenhouse gas emissions released to the environment from activities in London. It also quantifies emissions removed through Land Use, Land Change and Forestry sector activities. It is produced on an annual basis to measure progress against the Mayor's emissions reduction targets for London. The inventory provides emissions in the following...

The central London Ultra Low Emission Zone (ULEZ) was introduced to clean up London’s most polluted air. It started on 8 April 2019, operates in the existing central London Congestion Charge Zone, 24 hours a day, every day of the year. Vehicles must meet strict emission standards to drive in the central London ULEZ area, or pay a charge. It replaced the Toxicity Charge (T-Charge) in central London and is in addition to the Congestion Ch...

The Ultra Low Emission Zone will be expanded from the 25 October 2021 to include the area up to the North and South circular roads (from the Congestion Zone). ULEZ was introduced to clean up London’s most polluted air. It started on 8 April 2019, operates in the existing central London Congestion Charge Zone, 24 hours a day, every day of the year. Vehicles must meet strict emission standards to drive in the central London ULEZ area, or ...

The Londonwide Low Emission Zone (LEZ) was launched in February 2008. The LEZ operates to encourage the most polluting heavy (including buses, coaches, lorries and other specialist vehicles) diesel vehicles driving in London to become cleaner. The LEZ covers most of Greater London and is in operation 24 hours a day, every day of the year. Heavy vehicles must meet a minimum emission standard of pay a £100 charge.Starting 26 October 2020 ...

Two zones in the City Fringe during peak hours, will be restricted to walking, cycling and low emissions vehicles only. These zones, known as ultra low emissions streets, or ULEV streets. For more information please visit-https://hackney.gov.uk/article/5270/Ultra-low-emission-streets.

The data shows roadside and background average readings for Nitric Oxide, Nitrogen Dioxide, Oxides of Nitrogen, Ozone, Particulate Matter (PM10 and PM2.5), and Sulphur Dioxide. Measured in Micrograms per Cubic Meter of Air (ug/m3). The spreadsheet shows which Index level each reading falls in, and contains charts showing pollutant levels by time of day per month. Trend graphs of Nitrogen Dioxide and Particulate Matter PM2.5 are on th...

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 LAQM review process and forecasted air pollution trends. This is not an exhaustive list of Lon...

This dataset maps noise pollution in London. Data is available for noise pollution from road and rail sources. The following shapefiles are available to download below: LAeq,16h: indicates the annual average noise levels for the 16-hour period between 0700 – 2300. Lden: indicates a 24 hour annual average noise level with separate weightings for the evening and night periods. Lnight: indicates night time annual average noise level ...

Updated in Februrary 2017. Air quality in London has improved in recent years as a result of policies to reduce emissions, primarily from road transport. However, recently updated maps of pollution concentrations for 2013 (LAEI 2013) still show significant areas of exceedances of the annual mean NO2 EU Limit Values. Improvements are planned to address these, as recently announced in the Mayor’s package of air quality measures. The U...

The LAEI 2006 has since been superseded. Click here for the full list of releases. Modelled NO2 annual mean concentrations in London for the year 2006. Calculations are based on the 2006 London Atmospheric Emissions Inventory (LAEI) and use three different meteorological scenarios (2003, 2004 and 2006). This dataset can be mapped in a Geographic Information System (GIS) using the corresponding 20m grid or point datasets also available ...