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Air quality in March: cleanest & most polluted destinations

Where the air is cleanest — and worst — to travel in March, ranked by the monthly-mean US Air Quality Index (AQI) across 600+ destinations. Lower is better: 0–50 is good, 100+ starts to bite, 150+ is unhealthy. Tap any place for its full March weather and air-quality breakdown.

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Worst air quality in March

  1. 1Hotan, ChinaVery unhealthy211AQI
  2. 2Riyadh, Saudi ArabiaUnhealthy183AQI
  3. 3Ürümqi, ChinaUnhealthy170AQI
  4. 4Jeddah, Saudi ArabiaUnhealthy169AQI
  5. 5Mecca, Saudi ArabiaUnhealthy167AQI
  6. 6Salalah, OmanUnhealthy166AQI
  7. 7Dhaka, BangladeshUnhealthy for sensitive groups142AQI
  8. 8Delhi, IndiaUnhealthy for sensitive groups142AQI
  9. 9Chengdu, ChinaUnhealthy for sensitive groups141AQI
  10. 10Agra, IndiaUnhealthy for sensitive groups141AQI
  11. 11Mumbai, IndiaUnhealthy for sensitive groups139AQI
  12. 12Kuwait City, KuwaitUnhealthy for sensitive groups139AQI
  13. 13Beijing, ChinaUnhealthy for sensitive groups139AQI
  14. 14Kolkata, IndiaUnhealthy for sensitive groups138AQI
  15. 15Lahore, PakistanUnhealthy for sensitive groups134AQI

Cleanest air in March

  1. 1Honiara, Solomon IslandsGood12AQI
  2. 2Nadi, FijiGood12AQI
  3. 3Ushuaia, ArgentinaGood14AQI
  4. 4Farellones, ChileGood15AQI
  5. 5Puerto Natales, ChileGood15AQI
  6. 6El Calafate, ArgentinaGood16AQI
  7. 7Wānaka, New ZealandGood16AQI
  8. 8Queenstown, New ZealandGood17AQI
  9. 9Cairns, AustraliaGood18AQI
  10. 10Hobart, AustraliaGood18AQI
  11. 11Rotorua, New ZealandGood18AQI
  12. 12Suva, FijiGood18AQI
  13. 13Apia, SamoaGood19AQI
  14. 14Christchurch, New ZealandGood19AQI
  15. 15Papeete, French PolynesiaGood19AQI