SmogRank / Countries / Bulgaria / July 2023

Most polluted cities in Bulgaria, July 2023

7 cities in Bulgaria ranked by their average PM2.5 over the 31 days. Worst: Ruse at 12.9 µg/m³, #197 of 1,103 cities in the world. Cleanest: Dimitrovgrad at 5.5. A city needs measurements on 70% of the days to be ranked.

  1. 1RuseRuse
    12.9
  2. 2SofiaSofia-Capital
    11.8
  3. 3Haskovolow-cost sensorsHaskovo
    10.0
  4. 4Botevgradlow-cost sensorsSofia
    9.4
  5. 5Sevlievolow-cost sensorsGabrovo
    8.7
  6. 6Gabrovolow-cost sensorsGabrovo
    8.0
  7. 7Dimitrovgradlow-cost sensorsHaskovo
    5.5
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, July 2023 · Bulgaria now

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SmogRank, most polluted cities in Bulgaria, PM2.5, July 2023, smogrank.com/bg/history/2023-07 (accessed 2 Oct 2026).

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