SmogRank / World / Turkey / October 2026
Most polluted cities in Turkey, October 2026
1 city in Turkey ranked by their average PM2.5 so far (1 of 31 days). Worst: Istanbul at 19.0 µg/m³, #328 of 2,606 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Istanbullow-cost sensorsIstanbul 69
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, October 2026 · Turkey now
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SmogRank, most polluted cities in Turkey, PM2.5, October 2026 (so far), smogrank.com/tr/history/2026-10 (accessed 2 Oct 2026).
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