SmogRank / World / Romania / September 2023

Most polluted cities in Romania, September 2023

4 cities in Romania ranked by their average PM2.5 over the 30 days. Worst: Cluj-Napoca at 11.0 µg/m³, #325 of 1,830 cities in the world. Cleanest: Craiova at 8.4. A city needs measurements on 70% of the days to be ranked.

← Cluj-Napoca 11.0
Every city in Romania ranked for September 2023, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Cluj-NapocaCluj County
    11.0
  2. 2BucharestBucharest
    9.6
  3. 3IaşiIași County
    9.3
  4. 4CraiovaDolj
    8.4
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

All cities in the world, September 2023 · Romania now

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SmogRank, most polluted cities in Romania, PM2.5, September 2023, smogrank.com/ro/history/2023-09 (accessed 2 Oct 2026).

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