Bratislava Seasonal Pollution
Bratislava usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in April. The page uses OpenAQ-derived daily history for 6 mapped monitoring locations in Bratislava, Slovakia.
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Average EPA AQI
51
Rank 31 of 40 cities by average AQI
PM2.5
11.9
ug/m3 annualized city average
Seasonality
March
Cleanest: April
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Bratislava
59
46
59
41
44
51
53
56
42
45
59
59
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Bratislava, the current global analytics build covers 347 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.