SmogRank / World / Slovenia / February 2023

Most polluted cities in Slovenia, February 2023

8 cities in Slovenia ranked by their average PM2.5 over the 28 days. Worst: Novo Mesto at 40.7 µg/m³, #10 of 1,175 cities in the world. Cleanest: Maribor at 18.9. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for 25 of these 28 days. Cities in the United States and Europe have them from the EPA's and the European Environment Agency's own records of the same monitors; many cities elsewhere are missing from this board, not clean. Why.

← Novo Mesto 40.7 µg/m³ 40 µg/m³0
Every city in Slovenia ranked for February 2023, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Novo MestoUrban Municipality of Novo Mesto
    114
  2. 2KranjUrban Municipality of Kranj
    103
  3. 3LjubljanaLjubljana
    98
  4. 4TrbovljeMunicipality of Trbovlje
    97
  5. 5CeljeUrban Municipality of Celje
    94
  6. 6KoperUrban Municipality of Koper
    91
  7. 7PtujUrban Municipality of Ptuj
    88
  8. 8MariborUrban Municipality of Maribor
    69
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, February 2023 · Slovenia now

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SmogRank, most polluted cities in Slovenia, PM2.5, February 2023, smogrank.com/si/history/2023-02 (accessed 2 Oct 2026).

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