Town in Central Region, Malta
Air quality in Sliema
11.6PM2.5 µg/m³, yearly
Moderate
The annual average PM2.5 in Sliema was 11.6 µg/m³ in 2024, about 2.3 times the WHO guideline of 5 µg/m³.
Key facts
- PM2.5: 11.6 µg/m³ yearly average (2024). Measured at Valletta, 2 km away.
- PM10: 36.8 µg/m³ (2024).
- Nitrogen dioxide: 23.3 µg/m³ (2024), mostly from traffic.
- Recent average: 12.1 µg/m³ over the last five years of measurements.
PM2.5 by year
| Year | Annual average |
|---|---|
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 |
Air quality across Malta
| Place | PM2.5 | Level |
|---|---|---|
| Gozo | 8.7 µg/m³ | Fairly clean |
| Valletta | 11.6 µg/m³ | Moderate |
| St. Julian's | 11.6 µg/m³ | Moderate |
| Sliema | 11.6 µg/m³ | Moderate |
Quick answers
Is the air in Sliema bad?
Moderate: 11.6 µg/m³ of PM2.5 on average, 2.3× the WHO guideline.
How does Sliema compare with the rest of Malta?
People in Malta breathe 11 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 11.6 µg/m³ measured here.
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- Malta Public Transport
- Malta International Airport
- Visit Malta
- Bolt Malta
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 Spotted something out of date?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.