Plzeň Seasonal Pollution
Plzeň usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in May. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Plzeňský Kraj, Czech Republic.
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Average EPA AQI
48
Rank 39 of 61 cities by average AQI
PM2.5
11.2
ug/m3 annualized city average
Seasonality
March
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Plzeň
62
44
63
41
35
47
37
47
43
49
57
52
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Plzeň, the current global analytics build covers 309 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.