Hengelo Seasonal Pollution
Hengelo usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in November. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Overijssel, Netherlands.
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Average EPA AQI
68
Rank 2 of 71 cities by average AQI
PM2.5
19.4
ug/m3 annualized city average
Seasonality
December
Cleanest: November
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Hengelo
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67
68
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Hengelo, the current global analytics build covers 56 daily rows from 2024-11-06 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.