SmogRank / Countries / Turkey / 2026
Most polluted cities in Turkey, 2026
1 city in Turkey ranked by their average PM2.5 so far (273 of 365 days); 1 above the WHO annual guideline (5.0 µg/m³). Worst: Istanbul at 23.6 µg/m³, #194 of 2,181 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Istanbullow-cost sensorsIstanbul 23.64.7×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+