Sliven Health Impact
Sliven averaged n/a ug/m3 PM2.5, equal to n/ax the WHO annual PM2.5 guideline. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Sliven, Bulgaria.
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Average EPA AQI
22
Rank 26 of 35 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
March
Cleanest: August
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Sliven
29
28
33
23
14
16
15
13
21
23
26
21
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Sliven, the current global analytics build covers 318 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.