SmogRank / Countries / Taiwan / March 2025

Most polluted cities in Taiwan, March 2025

40 cities in Taiwan ranked by their average PM2.5 over the 31 days. Worst: Erlun at 22.5 µg/m³, #275 of 2,218 cities in the world. Cleanest: Hengchun at 5.6. A city needs measurements on 70% of the days to be ranked.

  1. 1ErlunTaiwan
    22.5
  2. 2FengshanTakao
    21.8
  3. 3DouliuTaiwan
    21.5
  4. 3TainanTaiwan
    21.5
  5. 5JinchengFukien
    20.9
  6. 6XinyingTaiwan
    20.8
  7. 6BeigangTaiwan
    20.8
  8. 8Chiayi CityTaiwan
    20.6
  9. 9YongkangTaiwan
    20.5
  10. 10KaohsiungTakao
    20.4
  11. 11TaibaoTaiwan
    19.8
  12. 12YuanlinTaiwan
    19.3
  13. 12ErlinTaiwan
    19.3
  14. 14ZhushanTaiwan
    18.7
  15. 15ChaozhouTaiwan
    18.4
  16. 16NantouTaiwan
    17.6
  17. 17NeiliTaiwan
    17.4
  18. 18HsinchuTaiwan
    16.7
  19. 19ToufenTaiwan
    16.6
  20. 19BuziTaiwan
    16.6
  21. 19ChanghuaTaiwan
    16.6
  22. 22TaoyuanTaiwan
    16.4
  23. 23TaichungTaiwan
    16.3
  24. 24ZhubeiTaiwan
    16.1
  25. 25New Taipei CityTaipei
    15.8
  26. 26DaxiTaiwan
    15.6
  27. 27TaipeiTaiwan
    15.5
  28. 27ShulinTaipei
    15.5
  29. 29XizhiTaipei
    15.4
  30. 30MiaoliTaiwan
    15.2
  31. 31PuliTaiwan
    14.9
  32. 32XizhouTaiwan
    14.5
  33. 33KeelungTaiwan
    12.6
  34. 34ZhudongTaiwan
    12.5
  35. 35MagongTaiwan
    12.4
  36. 36YilanTaiwan
    10.0
  37. 37SanzhiTaipei
    9.8
  38. 38Hualien CityTaiwan
    7.2
  39. 39TaitungTaiwan
    6.7
  40. 40HengchunTaiwan
    5.6
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, March 2025 · Taiwan now