Islands, Portugal
Air quality in Azores
7.4PM2.5 µg/m³, yearly
Fairly clean
The annual average PM2.5 in Azores was 7.4 µg/m³ in 2024, about 1.5 times the WHO guideline of 5 µg/m³.
Key facts
- PM2.5: 7.4 µg/m³ yearly average (2024). Measured at Ponta Delgada.
- PM10: 18 µg/m³ (2024).
- Nitrogen dioxide: 5.3 µg/m³ (2024), mostly from traffic.
Air quality across Portugal
| Place | PM2.5 | Level |
|---|---|---|
| Algarve | 2.9 µg/m³ | Meets the WHO guideline |
| Faro | 2.9 µg/m³ | Meets the WHO guideline |
| Madeira | 5 µg/m³ | Meets the WHO guideline |
| Douro Valley | 5 µg/m³ | Meets the WHO guideline |
| Silver Coast | 6.4 µg/m³ | Fairly clean |
| Sintra | 7.4 µg/m³ | Fairly clean |
| Cascais | 7.4 µg/m³ | Fairly clean |
| Azores | 7.4 µg/m³ | Fairly clean |
| Porto | 8 µg/m³ | Fairly clean |
| Lisbon | 9 µg/m³ | Fairly clean |
Quick answers
Is the air in Azores bad?
Fairly clean: 7.4 µg/m³ of PM2.5 on average, 1.5× the WHO guideline.
How does Azores compare with the rest of Portugal?
People in Portugal breathe 9 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 7.4 µg/m³ measured here.
More about Azores
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- Visit Azores
- Azores Airlines
- SATA Air Açores
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 Spotted something out of date?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.