SmogRank / Countries / Bulgaria / July 2026

Most polluted cities in Bulgaria, July 2026

10 cities in Bulgaria ranked by their average PM2.5 over the 31 days. Worst: Varna at 9.9 µg/m³, #1,121 of 2,262 cities in the world. Cleanest: Sevlievo at 2.7. A city needs measurements on 70% of the days to be ranked.

  1. 1VarnaVarna
    9.9
  2. 2RuseRuse
    8.8
  3. 3SofiaSofia-Capital
    8.2
  4. 4Dimitrovgradlow-cost sensorsHaskovo
    6.1
  5. 5Veliko Tŭrnovolow-cost sensorsVeliko Tarnovo
    5.6
  6. 6Svishtovlow-cost sensorsVeliko Tarnovo
    5.2
  7. 6Haskovolow-cost sensorsHaskovo
    5.2
  8. 8Gabrovolow-cost sensorsGabrovo
    4.9
  9. 9Gorna Oryahovitsalow-cost sensorsVeliko Tarnovo
    4.5
  10. 10Sevlievolow-cost sensorsGabrovo
    2.7
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 2026 · Bulgaria now

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

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