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Ljubljana Seasonal Pollution

Ljubljana usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in March. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Ljubljana, Slovenia.

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Average EPA AQI

44

Rank 8 of 17 cities by average AQI

PM2.5

14.5

ug/m3 annualized city average

Seasonality

December

Cleanest: March

Health indicator

0.7

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Ljubljana

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Ljubljana
36
29
25
44
40
40
48
38
27
26
83
91

What this seasonality page measures

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

For Ljubljana, the current global analytics build covers 361 daily rows from 2024-01-03 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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