SmogRank / Countries / Bulgaria
Most polluted cities in Bulgaria
9 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Ruse at 11.0 µg/m³, #361 in the world.
8 good 1 moderate
- 1RuseRuse 11.00.7×
- 2Gabrovolow-cost sensorsGabrovo 7.30.5×
- 3SofiaSofia-Capital 7.20.5×
- 4Sevlievolow-cost sensorsGabrovo 7.20.5×
- 5Svishtovlow-cost sensorsVeliko Tarnovo 6.40.4×
- 6Dimitrovgradlow-cost sensorsHaskovo 5.90.4×
- 7Gorna Oryahovitsalow-cost sensorsVeliko Tarnovo 5.80.4×
- 8Veliko Tŭrnovolow-cost sensorsVeliko Tarnovo 5.60.4×
- 9Haskovolow-cost sensorsHaskovo 4.60.3×
Estimated: cities without a monitor
Bulgaria cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Burgas | ≈ 5 µg/m³ |
| Stara Zagora | ≈ 5 µg/m³ |
| Pleven | ≈ 8 µg/m³ |
| Sliven | ≈ 5 µg/m³ |
| Pernik | ≈ 8 µg/m³ |
| Shumen | ≈ 6 µg/m³ |
| Dobrich | ≈ 5 µg/m³ |
| Blagoevgrad | ≈ 7 µg/m³ |
| Yambol | ≈ 5 µg/m³ |
| Pazardzhik | ≈ 7 µg/m³ |
| Asenovgrad | ≈ 7 µg/m³ |
| Vratsa | ≈ 11 µg/m³ |
| Kazanlak | ≈ 5 µg/m³ |
| Montana | ≈ 13 µg/m³ |
| Kyustendil | ≈ 9 µg/m³ |
| Kardzhali | ≈ 5 µg/m³ |
| Vidin | ≈ 15 µg/m³ |
| Targovishte | ≈ 6 µg/m³ |
| Dupnitsa | ≈ 9 µg/m³ |
| Petrich | ≈ 8 µg/m³ |
| Smolyan | ≈ 5 µg/m³ |
| Karlovo | ≈ 6 µg/m³ |
| Silistra | ≈ 6 µg/m³ |
| Razgrad | ≈ 6 µg/m³ |
| Sandanski | ≈ 6 µg/m³ |
| Lovech | ≈ 7 µg/m³ |
| Samokov | ≈ 8 µg/m³ |
| Nova Zagora | ≈ 5 µg/m³ |
| Troyan | ≈ 6 µg/m³ |
| Aytos | ≈ 5 µg/m³ |
| Gotse Delchev | ≈ 5 µg/m³ |
| Velingrad | ≈ 7 µg/m³ |
| Karnobat | ≈ 5 µg/m³ |
| Panagyurishte | ≈ 8 µg/m³ |
| Harmanli | ≈ 5 µg/m³ |
| Peshtera | ≈ 8 µg/m³ |
| Lom | ≈ 15 µg/m³ |
| Parvomay | ≈ 5 µg/m³ |
| Svilengrad | ≈ 5 µg/m³ |
| Popovo | ≈ 6 µg/m³ |
Regions
Measured cities in each region (30 days).
Updated 2026-10-01 22:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.