SmogRank / Countries / Greece / April 2025
Most polluted cities in Greece, April 2025
2 cities in Greece ranked by their average PM2.5 over the 30 days. Worst: Acharnés at 17.5 µg/m³, #246 of 2,286 cities in the world. Cleanest: Volos at 10.4. A city needs measurements on 70% of the days to be ranked.
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+