SmogRank / Countries / Bulgaria
Most polluted cities in Bulgaria
11 measured cities ranked by PM2.5, last 30 days. Worst: Ruse at 9.2 µg/m³, #463 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Ruse Ruse | 9.2 | |
| 2 | Sofia Sofia-Capital | 7.8 | |
| 3 | Varna Varna | 6.9 | |
| 4 | Dimitrovgrad low-cost sensorsHaskovo | 5.3 | |
| 5 | Botevgrad low-cost sensorsSofia | 5.3 | |
| 6 | Veliko Tŭrnovo low-cost sensorsVeliko Tarnovo | 5.0 | |
| 7 | Haskovo low-cost sensorsHaskovo | 4.3 | |
| 8 | Svishtov low-cost sensorsVeliko Tarnovo | 4.2 | |
| 9 | Gabrovo low-cost sensorsGabrovo | 4.0 | |
| 10 | Gorna Oryahovitsa low-cost sensorsVeliko Tarnovo | 3.6 | |
| 11 | Sevlievo low-cost sensorsGabrovo | 3.2 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
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 estimated | ≈ 5 µg/m³ |
| Stara Zagora estimated | ≈ 5 µg/m³ |
| Pleven estimated | ≈ 8 µg/m³ |
| Sliven estimated | ≈ 5 µg/m³ |
| Pernik estimated | ≈ 8 µg/m³ |
| Shumen estimated | ≈ 6 µg/m³ |
| Dobrich estimated | ≈ 5 µg/m³ |
| Blagoevgrad estimated | ≈ 7 µg/m³ |
| Yambol estimated | ≈ 5 µg/m³ |
| Pazardzhik estimated | ≈ 7 µg/m³ |
| Asenovgrad estimated | ≈ 7 µg/m³ |
| Vratsa estimated | ≈ 11 µg/m³ |
| Kazanlak estimated | ≈ 5 µg/m³ |
| Montana estimated | ≈ 13 µg/m³ |
| Kyustendil estimated | ≈ 9 µg/m³ |
| Kardzhali estimated | ≈ 5 µg/m³ |
| Vidin estimated | ≈ 15 µg/m³ |
| Targovishte estimated | ≈ 6 µg/m³ |
| Dupnitsa estimated | ≈ 9 µg/m³ |
| Petrich estimated | ≈ 8 µg/m³ |
| Smolyan estimated | ≈ 5 µg/m³ |
| Karlovo estimated | ≈ 6 µg/m³ |
| Silistra estimated | ≈ 6 µg/m³ |
| Razgrad estimated | ≈ 6 µg/m³ |
| Sandanski estimated | ≈ 6 µg/m³ |
| Lovech estimated | ≈ 7 µg/m³ |
| Samokov estimated | ≈ 8 µg/m³ |
| Nova Zagora estimated | ≈ 5 µg/m³ |
| Troyan estimated | ≈ 6 µg/m³ |
| Aytos estimated | ≈ 5 µg/m³ |
| Gotse Delchev estimated | ≈ 5 µg/m³ |
| Velingrad estimated | ≈ 7 µg/m³ |
| Karnobat estimated | ≈ 5 µg/m³ |
| Panagyurishte estimated | ≈ 8 µg/m³ |
| Harmanli estimated | ≈ 5 µg/m³ |
| Peshtera estimated | ≈ 8 µg/m³ |
| Lom estimated | ≈ 15 µg/m³ |
| Parvomay estimated | ≈ 5 µg/m³ |
| Svilengrad estimated | ≈ 5 µg/m³ |
| Popovo estimated | ≈ 6 µg/m³ |
Regions
Updated 2026-10-01 11:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.