Mons Seasonal Pollution
Mons usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in April. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Wallonia, Belgium.
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Average EPA AQI
37
Rank 49 of 67 cities by average AQI
PM2.5
8.2
ug/m3 annualized city average
Seasonality
November
Cleanest: April
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Mons
44
27
32
18
48
40
29
35
40
43
49
39
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Mons, the current global analytics build covers 325 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.