SmogRank / Countries / Bulgaria / January 2025

Most polluted cities in Bulgaria, January 2025

5 cities in Bulgaria ranked by their average PM2.5 over the 31 days. Worst: Haskovo at 37.2 µg/m³, #40 of 1,937 cities in the world. Cleanest: Gabrovo at 25.5. A city needs measurements on 70% of the days to be ranked.

  1. 1Haskovolow-cost sensorsHaskovo
    37.2
  2. 2Dimitrovgradlow-cost sensorsHaskovo
    36.6
  3. 3Botevgradlow-cost sensorsSofia
    35.8
  4. 4Sevlievolow-cost sensorsGabrovo
    31.6
  5. 5Gabrovolow-cost sensorsGabrovo
    25.5
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, January 2025 · Bulgaria now