SmogRank / World / Turkey / January 2026
Most polluted cities in Turkey, January 2026
1 city in Turkey ranked by their average PM2.5 over the 31 days. Worst: Istanbul at 26.8 µg/m³, #207 of 2,281 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Istanbullow-cost sensorsIstanbul 26.8
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+
The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. 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, January 2026 · Turkey now
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SmogRank, most polluted cities in Turkey, PM2.5, January 2026, smogrank.com/tr/history/2026-01 (accessed 2 Oct 2026).
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