Botevgrad Seasonal Pollution
Botevgrad usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in April. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Sofia, Bulgaria.
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Average EPA AQI
58
Rank 5 of 35 cities by average AQI
PM2.5
14.9
ug/m3 annualized city average
Seasonality
December
Cleanest: April
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Botevgrad
81
78
61
39
43
46
47
46
46
54
76
83
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Botevgrad, the current global analytics build covers 363 daily rows from 2023-12-31 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.