Břevnov Seasonal Pollution
Břevnov usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in April. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Středočeský Kraj, Czech Republic.
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Average EPA AQI
60
Rank 15 of 61 cities by average AQI
PM2.5
15.7
ug/m3 annualized city average
Seasonality
November
Cleanest: April
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Břevnov
66
49
74
46
51
55
49
61
57
65
75
68
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Břevnov, the current global analytics build covers 364 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.