SmogRank / World / Taiwan / Taiwan / October 2026

Most polluted cities in Taiwan, Taiwan, October 2026

35 cities in Taiwan, Taiwan ranked by their average PM2.5 so far (5 of 31 days). Worst: Puli at 17.2 µg/m³, #135 of 2,246 cities in the world. Cleanest: Hengchun at 6.7. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

← Puli 0% 0.75%0
Every city in Taiwan, Taiwan ranked for October 2026, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Puli
    0%
  2. 2Zhushan
    0%
  3. 3Douliu
    0%
  4. 3Erlin
    0%
  5. 5Erlun
    0%
  6. 6Yuanlin
    0%
  7. 7Beigang
    0%
  8. 8Taichung
    0%
  9. 9Taibao
    0%
  10. 9Lugu
    0%
  11. 11Xinying
    0%
  12. 12Tainan
    0%
  13. 13Miaoli
    0%
  14. 14Nantou
    0%
  15. 14Chaozhou
    0%
  16. 16Xizhou
    0%
  17. 17Changhua
    0%
  18. 18Yongkang
    0%
  19. 18Buzi
    0%
  20. 20Neili
    0%
  21. 21Taoyuan
    0%
  22. 22Shenzhen
    0%
  23. 22Zhudong
    0%
  24. 24Hsinchu
    0%
  25. 25Chiayi City
    0%
  26. 26Taipei
    0%
  27. 27Magong
    0%
  28. 28Toufen
    0%
  29. 28Daxi
    0%
  30. 30Keelung
    0%
  31. 31Yilan
    0%
  32. 32Hualien City
    0%
  33. 33Taitung
    0%
  34. 34Guanshan
    0%
  35. 35Hengchun
    0%
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 · All cities in Taiwan, October 2026 · Taiwan now

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SmogRank, most polluted cities in Taiwan, Taiwan, PM2.5, October 2026 (so far), smogrank.com/tw/region/taiwan/history/2026-10 (accessed 6 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.