Bellinzona Seasonal Pollution
Bellinzona usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in May. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Ticino, Switzerland.
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Average EPA AQI
47
Rank 9 of 33 cities by average AQI
PM2.5
10.9
ug/m3 annualized city average
Seasonality
December
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Bellinzona
56
47
36
-
24
31
46
51
34
37
61
65
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Bellinzona, the current global analytics build covers 255 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.