Shumen AQI Trends
Shumen AQI was measured in 2024, with a trend delta of n/a AQI points. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Shumen, Bulgaria.
Search city analytics
Average EPA AQI
21
Rank 27 of 35 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
March
Cleanest: May
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Shumen
21
21
27
20
15
20
21
20
-
27
26
18
What this trends page measures
Compare yearly air-quality direction, best years, worst years, and trend deltas.
For Shumen, the current global analytics build covers 294 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.