City in Varna Province, Bulgaria
Air quality in Varna
10.9PM2.5 µg/m³, yearly
Moderate
The annual average PM2.5 in Varna was 10.9 µg/m³ in 2025, about 2.2 times the WHO guideline of 5 µg/m³.
Key facts
- PM2.5: 10.9 µg/m³ yearly average (2025). Measured at Varna.
- PM10: 23.4 µg/m³ (2025).
- Nitrogen dioxide: 21 µg/m³ (2025), mostly from traffic.
- Recent average: 10.6 µg/m³ over the last five years of measurements.
PM2.5 by year
| Year | Annual average |
|---|---|
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 |
Air quality across Bulgaria
| Place | PM2.5 | Level |
|---|---|---|
| Sofia | 8 µg/m³ | Fairly clean |
| Varna | 10.9 µg/m³ | Moderate |
| Golden Sands | 10.9 µg/m³ | Moderate |
| Veliko Tarnovo | 14.3 µg/m³ | Moderate |
| Plovdiv | 17 µg/m³ | Polluted |
Quick answers
Is the air in Varna bad?
Moderate: 10.9 µg/m³ of PM2.5 on average, 2.2× the WHO guideline.
How does Varna compare with the rest of Bulgaria?
People in Bulgaria breathe 20 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 10.9 µg/m³ measured here.
More about Varna
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- Varna Airport
- BDZ (Bulgarian State Railways)
Annual averages are measured values reported to the WHO; check a live map for today's air. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.