SmogRank / Countries / Taiwan / 2026
Most polluted cities in Taiwan, 2026
41 cities in Taiwan ranked by their average PM2.5 so far (273 of 365 days); 41 above the WHO annual guideline (5.0 µg/m³). Worst: Fengshan at 17.5 µg/m³, #262 of 2,181 cities in the world. Cleanest: Hengchun at 7.0. A city needs measurements on 70% of the days to be ranked.
- 1FengshanTakao 17.53.5×
- 2DouliuTaiwan 16.83.4×
- 3JinchengFukien 16.63.3×
- 4ErlunTaiwan 16.43.3×
- 5YuanlinTaiwan 16.13.2×
- 6Chiayi CityTaiwan 15.53.1×
- 7BeigangTaiwan 15.43.1×
- 7KaohsiungTakao 15.43.1×
- 7ZhushanTaiwan 15.43.1×
- 10TainanTaiwan 15.33.1×
- 11YongkangTaiwan 15.23.0×
- 12NantouTaiwan 14.83.0×
- 12ErlinTaiwan 14.83.0×
- 14XinyingTaiwan 14.62.9×
- 15ChaozhouTaiwan 14.42.9×
- 16TaibaoTaiwan 13.82.8×
- 17PuliTaiwan 13.72.7×
- 18BuziTaiwan 13.62.7×
- 19ChanghuaTaiwan 13.52.7×
- 20TaichungTaiwan 13.42.7×
- 21ShulinTaipei 13.32.7×
- 22NeiliTaiwan 12.72.5×
- 23LuguTaiwan 12.12.4×
- 24DaxiTaiwan 12.02.4×
- 24MiaoliTaiwan 12.02.4×
- 24XizhiTaipei 12.02.4×
- 27TaipeiTaiwan 11.82.4×
- 28New Taipei CityTaipei 11.62.3×
- 29XizhouTaiwan 11.52.3×
- 30HsinchuTaiwan 11.32.3×
- 30TaoyuanTaiwan 11.32.3×
- 32MagongTaiwan 11.22.2×
- 33ToufenTaiwan 11.12.2×
- 33ZhubeiTaiwan 11.12.2×
- 35ZhudongTaiwan 10.72.1×
- 36KeelungTaiwan 10.12.0×
- 37YilanTaiwan 9.61.9×
- 38TaitungTaiwan 8.01.6×
- 39Hualien CityTaiwan 7.81.6×
- 40SanzhiTaipei 7.31.5×
- 41HengchunTaiwan 7.01.4×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+