SmogRank / Countries / Bulgaria / October 2023

Most polluted cities in Bulgaria, October 2023

7 cities in Bulgaria ranked by their average PM2.5 over the 31 days. Worst: Ruse at 15.7 µg/m³, #55 of 1,686 cities in the world. Cleanest: Dimitrovgrad at 5.4. A city needs measurements on 70% of the days to be ranked.

  1. 1RuseRuse
    15.7
  2. 2Botevgradlow-cost sensorsSofia
    9.5
  3. 3Haskovolow-cost sensorsHaskovo
    9.4
  4. 4SofiaSofia-Capital
    9.2
  5. 5Sevlievolow-cost sensorsGabrovo
    8.3
  6. 6Gabrovolow-cost sensorsGabrovo
    6.6
  7. 7Dimitrovgradlow-cost sensorsHaskovo
    5.4
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, October 2023 · Bulgaria now