SmogRank / World / Malta / December 2023
Most polluted cities in Malta, December 2023
2 cities in Malta ranked by their average PM2.5 over the 31 days. Worst: Sliema at 13.8 µg/m³, #261 of 1,889 cities in the world. Cleanest: Mosta at 5.2. A city needs measurements on 70% of the days to be ranked.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, December 2023 · Malta now
Use this board
SmogRank, most polluted cities in Malta, PM2.5, December 2023, smogrank.com/mt/history/2023-12 (accessed 2 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.