Sopron Seasonal Pollution
Sopron usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in September. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Sopron, Hungary.
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Average EPA AQI
14
Rank 42 of 43 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
March
Cleanest: September
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Sopron
14
11
24
13
11
11
13
12
9
15
18
14
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Sopron, the current global analytics build covers 294 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.