Bucharest Seasonal Pollution
Bucharest usually records its highest OpenAQ-derived EPA AQI in October and its cleanest month in May. The page uses OpenAQ-derived daily history for 14 mapped monitoring locations in Bucureşti, Romania.
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Average EPA AQI
24
Rank 25 of 69 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
October
Cleanest: May
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Bucharest
30
30
25
20
18
23
19
21
27
30
29
19
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Bucharest, the current global analytics build covers 337 daily rows from 2024-01-10 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.