Bielsko-Biała Seasonal Pollution
Bielsko-Biała usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in July. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Śląskie, Poland.
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Average EPA AQI
66
Rank 18 of 155 cities by average AQI
PM2.5
20.0
ug/m3 annualized city average
Seasonality
December
Cleanest: July
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Bielsko-Biała
82
63
78
58
50
50
49
58
59
72
85
92
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Bielsko-Biała, the current global analytics build covers 363 daily rows from 2024-01-03 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.