Baciu Seasonal Pollution
Baciu usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in May. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Cluj, Romania.
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Average EPA AQI
64
Rank 4 of 69 cities by average AQI
PM2.5
17.2
ug/m3 annualized city average
Seasonality
November
Cleanest: May
Health indicator
0.8
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Baciu
86
78
-
-
44
47
51
48
48
62
87
79
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Baciu, the current global analytics build covers 278 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.