Bucharest Seasonal Pollution
Bucharest usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in May. The page uses OpenAQ-derived daily history for 17 mapped monitoring locations in Bucharest-Ilfov, Romania.
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Average EPA AQI
26
Rank 21 of 69 cities by average AQI
PM2.5
46.8
ug/m3 annualized city average
Seasonality
December
Cleanest: May
Health indicator
2.1
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Bucharest
26
26
23
19
14
18
18
22
23
28
28
61
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 346 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.