Essen Seasonal Pollution
Essen usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in October. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in North Rhine-Westphalia, Germany.
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Average EPA AQI
38
Rank 189 of 297 cities by average AQI
PM2.5
7.9
ug/m3 annualized city average
Seasonality
January
Cleanest: October
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Essen
50
36
48
29
43
43
32
37
31
29
38
37
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Essen, the current global analytics build covers 340 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.