Dupnitsa AQI Trends
Dupnitsa AQI was measured across 2023-2024, with a trend delta of n/a AQI points. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Kyustendil, Bulgaria.
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Average EPA AQI
51
Rank 13 of 35 cities by average AQI
PM2.5
12.5
ug/m3 annualized city average
Seasonality
January
Cleanest: May
Health indicator
0.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Dupnitsa
76
66
55
33
32
38
41
43
39
48
68
71
What this trends page measures
Compare yearly air-quality direction, best years, worst years, and trend deltas.
For Dupnitsa, 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.