West Ham Seasonal Pollution
West Ham usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in February. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Newham, United Kingdom.
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Average EPA AQI
45
Rank 29 of 171 cities by average AQI
PM2.5
8.9
ug/m3 annualized city average
Seasonality
January
Cleanest: February
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
West Ham
48
39
47
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What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For West Ham, the current global analytics build covers 86 daily rows from 2024-01-01 to 2024-03-28. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.