Mortara Seasonal Pollution
Mortara usually records its highest OpenAQ-derived EPA AQI in February and its cleanest month in May. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Lombardy, Italy.
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Average EPA AQI
65
Rank 25 of 132 cities by average AQI
PM2.5
19.0
ug/m3 annualized city average
Seasonality
February
Cleanest: May
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Mortara
106
108
58
47
45
52
61
55
57
54
93
89
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Mortara, the current global analytics build covers 250 daily rows from 2024-01-29 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.