London AQI Trends
London AQI was measured in 2024, with a trend delta of n/a AQI points. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Ontario, Canada.
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Average EPA AQI
36
Rank 34 of 158 cities by average AQI
PM2.5
7.0
ug/m3 annualized city average
Seasonality
February
Cleanest: November
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
London
44
44
29
29
37
34
41
42
40
30
27
36
What this trends page measures
Compare yearly air-quality direction, best years, worst years, and trend deltas.
For London, the current global analytics build covers 365 daily rows from 2024-01-01 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.