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Svilengrad Seasonal Pollution

Svilengrad usually records its highest OpenAQ-derived EPA AQI in January and its cleanest month in May. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Haskovo, Bulgaria.

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Average EPA AQI

52

Rank 11 of 35 cities by average AQI

PM2.5

13.6

ug/m3 annualized city average

Seasonality

January

Cleanest: May

Health indicator

0.6

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Svilengrad

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Svilengrad
95
77
69
33
26
31
39
30
37
42
72
75

What this seasonality page measures

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

For Svilengrad, 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.

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