Most polluted cities in Malta
4 measured cities ranked by PM2.5, last 7 days. Worst: Valletta at 10.4 µg/m³, #468 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Valletta Valletta | 10.4 | |
| 2 | Mosta Il-Mosta | 9.5 | |
| 3 | San Pawl il-Baħar Saint Paul’s Bay | 8.3 | |
| 4 | Birkirkara low-cost sensorsBirkirkara | 7.2 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
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.
Updated 2026-10-01 16:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.