Groenlo Seasonal Pollution
Groenlo usually records its highest OpenAQ-derived EPA AQI in September and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Gelderland, Netherlands.
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Average EPA AQI
13
Rank 62 of 71 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
September
Cleanest: April
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Groenlo
15
11
15
11
14
14
12
15
15
15
12
11
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Groenlo, the current global analytics build covers 358 daily rows from 2024-01-03 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.