London Average Air Quality Levels

Published by:
Greater London Authority
Last updated:
01 July 2026
Topic:
Not added
Licence:
None

Summary

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 the London Dashboard. Link to GLA Air Quality page

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Link to the data Format File added Data preview
air-quality-london-time-of-day N/A 01 July 2026 Not available
air-quality-london-monthly-averages N/A 01 July 2026 Not available
air-quality-london.xls N/A 01 July 2026 Not available

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