Alessandria Seasonal Pollution
Alessandria usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in June. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Piedmont, Italy.
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Average EPA AQI
73
Rank 6 of 132 cities by average AQI
PM2.5
22.1
ug/m3 annualized city average
Seasonality
November
Cleanest: June
Health indicator
1.0
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Alessandria
103
88
54
64
56
53
53
57
55
53
104
87
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Alessandria, the current global analytics build covers 207 daily rows from 2024-01-01 to 2024-12-30. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.