Acton Seasonal Pollution
Acton usually records its highest OpenAQ-derived EPA AQI in June and its cleanest month in December. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Ealing, United Kingdom.
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Average EPA AQI
23
Rank 143 of 171 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
June
Cleanest: December
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Acton
21
21
24
19
24
29
24
27
24
21
25
13
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Acton, the current global analytics build covers 366 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.