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Live ranking

Most polluted cities right now

15 world cities ranked by air quality — each value is the worst pollutant as a multiple of the WHO safe limit. Updated continuously.

  1. 1JakartaIndonesiaWell above WHO limitsPM2.5 3.6×
  2. 2SingaporeSingaporeWell above WHO limitsNO₂ 3.4×
  3. 3Los AngelesUnited StatesWell above WHO limitsNO₂ 3.2×
  4. 4DubaiUnited Arab EmiratesWell above WHO limitsPM2.5 2.6×
  5. 5SeoulSouth KoreaWell above WHO limitsNO₂ 2.3×
  6. 6BarcelonaSpainAbove WHO limitsNO₂ 1.8×
  7. 7Hong KongHong KongAbove WHO limitsPM2.5 1.8×
  8. 8BangkokThailandAbove WHO limitsO₃ 1.8×
  9. 9MoscowRussiaAbove WHO limitsPM2.5 1.8×
  10. 10BeijingChinaAbove WHO limitsNO₂ 1.7×
  11. 11MadridSpainAbove WHO limitsNO₂ 1.6×
  12. 12Mexico CityMexicoAbove WHO limitsNO₂ 1.6×
  13. 13BogotaColombiaAbove WHO limitsPM2.5 1.5×
  14. 14New YorkUnited StatesAbove WHO limitsNO₂ 1.5×
  15. 15IstanbulTurkeyAbove WHO limitsPM2.5 1.5×

Cleanest air right now

  1. 1Sao PauloBrazilClean airO₃ 0.4×
  2. 2AucklandNew ZealandWithin WHO limitsO₃ 0.5×
  3. 3BerlinGermanyWithin WHO limitsO₃ 0.5×
  4. 4BrusselsBelgiumWithin WHO limitsO₃ 0.6×
  5. 5ViennaAustriaWithin WHO limitsO₃ 0.6×
  6. 6MelbourneAustraliaWithin WHO limitsPM2.5 0.6×
  7. 7RomeItalyWithin WHO limitsNO₂ 0.6×
  8. 8Buenos AiresArgentinaWithin WHO limitsNO₂ 0.6×
  9. 9HelsinkiFinlandWithin WHO limitsO₃ 0.6×
  10. 10SydneyAustraliaWithin WHO limitsPM2.5 0.6×

How this works

Each city is scored by its most-exceeded pollutant, normalised against the World Health Organization's 2021 air-quality guidelines (so a score of 3× means three times the level considered safe). Data is live from Open-Meteo / CAMS. Tap any city to see its full live breakdown, or check your own area.