Most polluted cities in Ljubljana, Slovenia

1 measured city, last 7 days; 0 above the WHO 24-hour guideline. Worst: Ljubljana at 10.6 µg/m³, #667 in the world.

Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.

Good0–5

Fair6–15

Moderate16–50

Poor51–90

Very poor91–140

Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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SmogRank, most polluted cities in Ljubljana, Slovenia, PM2.5, last 7 days to 2 Oct 2026, 05:00 UTC, smogrank.com/si/region/ljubljana?w=7d.

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Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.