Europe
Air quality in Bulgaria
20µg/m³ national average
Air quality in Bulgaria
People in Bulgaria breathe an average of 20 µg/m³ of PM2.5 (2023), 4× the WHO guideline. Polluted.
Air quality by place in Bulgaria
Measured annual averages from the WHO Ambient Air Quality Database.
| Place | PM2.5 | Year | Level |
|---|---|---|---|
| Sofia | 8 µg/m³ | 2021 | Fairly clean |
| Varna | 10.9 µg/m³ | 2025 | Moderate |
| Golden Sands | 10.9 µg/m³ | 2025 | Moderate |
| Veliko Tarnovo | 14.3 µg/m³ | 2024 | Moderate |
| Plovdiv | 17 µg/m³ | 2021 | Polluted |
Air quality by place
Sources
- WHO Ambient Air Quality Database
- US State Department travel advisory
- UK FCDO travel advice: Bulgaria
- Ministry of Foreign Affairs of Bulgaria: visas
- Speedtest Global Index: Bulgaria
- EF English Proficiency Index 2025: Bulgaria
- World Bank open data
Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.