Most polluted cities in Malta
4 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: San Pawl il-Baħar at 8.5 µg/m³, #587 in the world.
4 good
- 1San Pawl il-BaħarSaint Paul’s Bay 8.50.6×
- 2VallettaValletta 7.90.5×
- 3MostaIl-Mosta 7.30.5×
- 4Birkirkaralow-cost sensorsBirkirkara 5.40.4×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
Estimated: cities without a monitor
Malta 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 |
|---|---|
| Sliema | ≈ 10 µg/m³ |
| Qormi | ≈ 10 µg/m³ |
Updated 2026-10-01 23:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.