Erba Seasonal Pollution
Erba usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in July. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Lombardy, Italy.
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Average EPA AQI
45
Rank 62 of 132 cities by average AQI
PM2.5
10.9
ug/m3 annualized city average
Seasonality
January
Cleanest: July
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Erba
93
80
42
36
32
34
30
-
-
-
-
-
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Erba, the current global analytics build covers 140 daily rows from 2024-01-29 to 2024-07-11. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.