Average annual nitrogen dioxide (NO₂) levels in London have been declining in recent years. NO₂ levels at roadside sites in central London averaged 33 micrograms per cubic meter (µg/m³) in 2023, representing a reduction of 65 percent relative to 2016 levels. In 2019, the Ultra Low Emission Zone (ULEZ) was introduced in central London. Operating 24 hours a day, seven days a week, drivers of vehicles who enter this zone which do not meet ULEZ emission standards are required to pay a daily charge.
Annual average nitrogen dioxide (NO₂) emission levels in London from 2016 to 2023, by location and site type
(in micrograms per cubic meter of air)
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Mayor of London. (March 8, 2024). Annual average nitrogen dioxide (NO₂) emission levels in London from 2016 to 2023, by location and site type (in micrograms per cubic meter of air) [Graph]. In Statista. Retrieved December 21, 2024, from https://www.statista.com/statistics/789138/average-annual-nitrogen-dioxide-levels-london-uk/
Mayor of London. "Annual average nitrogen dioxide (NO₂) emission levels in London from 2016 to 2023, by location and site type (in micrograms per cubic meter of air)." Chart. March 8, 2024. Statista. Accessed December 21, 2024. https://www.statista.com/statistics/789138/average-annual-nitrogen-dioxide-levels-london-uk/
Mayor of London. (2024). Annual average nitrogen dioxide (NO₂) emission levels in London from 2016 to 2023, by location and site type (in micrograms per cubic meter of air). Statista. Statista Inc.. Accessed: December 21, 2024. https://www.statista.com/statistics/789138/average-annual-nitrogen-dioxide-levels-london-uk/
Mayor of London. "Annual Average Nitrogen Dioxide (No₂) Emission Levels in London from 2016 to 2023, by Location and Site Type (in Micrograms per Cubic Meter of Air)." Statista, Statista Inc., 8 Mar 2024, https://www.statista.com/statistics/789138/average-annual-nitrogen-dioxide-levels-london-uk/
Mayor of London, Annual average nitrogen dioxide (NO₂) emission levels in London from 2016 to 2023, by location and site type (in micrograms per cubic meter of air) Statista, https://www.statista.com/statistics/789138/average-annual-nitrogen-dioxide-levels-london-uk/ (last visited December 21, 2024)
Annual average nitrogen dioxide (NO₂) emission levels in London from 2016 to 2023, by location and site type (in micrograms per cubic meter of air) [Graph], Mayor of London, March 8, 2024. [Online]. Available: https://www.statista.com/statistics/789138/average-annual-nitrogen-dioxide-levels-london-uk/
