Most polluted cities in Taiwan, Taiwan

34 measured cities ranked by PM2.5, last 7 days. Worst: Yuanlin at 17.3 µg/m³, #199 in the world.

#	City	µg/m³
1	Yuanlin Taiwan	17.3
2	Erlin Taiwan	16.1
3	Neili Taiwan	16.0
4	Taoyuan Taiwan	15.7
5	Taichung Taiwan	15.6
6	Beigang Taiwan	15.6
7	Taipei Taiwan	15.4
8	Douliu Taiwan	15.3
9	Zhubei Taiwan	15.1
10	Changhua Taiwan	15.1
11	Erlun Taiwan	15.0
12	Zhudong Taiwan	14.8
13	Miaoli Taiwan	14.5
14	Zhushan Taiwan	14.5
15	Puli Taiwan	14.4
16	Nantou Taiwan	14.2
17	Hsinchu Taiwan	14.2
18	Xizhou Taiwan	14.1
19	Chiayi City Taiwan	14.0
20	Buzi Taiwan	13.9
21	Daxi Taiwan	13.8
22	Xinying Taiwan	13.7
23	Keelung Taiwan	13.7
24	Taibao Taiwan	13.5
25	Chaozhou Taiwan	13.5
26	Tainan Taiwan	13.2
27	Lugu Taiwan	13.0
28	Yilan Taiwan	11.9
29	Yongkang Taiwan	11.2
30	Toufen Taiwan	10.6
31	Magong Taiwan	9.0
32	Taitung Taiwan	8.2
33	Hualien City Taiwan	8.2
34	Hengchun Taiwan	7.0

Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Taiwan cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City	7-day estimate	Band
Neihu estimated	≈ 15 µg/m³	Moderate
Chang-hua estimated	≈ 14 µg/m³	Moderate
Bade estimated	≈ 15 µg/m³	Moderate
Caotun estimated	≈ 23 µg/m³	Moderate
Wufeng estimated	≈ 23 µg/m³	Moderate
Xihu estimated	≈ 14 µg/m³	Moderate
Donggang estimated	≈ 10 µg/m³	Moderate
Xiluo estimated	≈ 15 µg/m³	Moderate
Shetou estimated	≈ 14 µg/m³	Moderate
Yongjing estimated	≈ 14 µg/m³	Moderate
Tianzhong estimated	≈ 14 µg/m³	Moderate
Beidou estimated	≈ 14 µg/m³	Moderate
Xingang estimated	≈ 15 µg/m³	Moderate
Pitou estimated	≈ 14 µg/m³	Moderate
Tianwei estimated	≈ 14 µg/m³	Moderate
Zhongxing New Village estimated	≈ 24 µg/m³	Moderate
Citong estimated	≈ 15 µg/m³	Moderate
Budai estimated	≈ 9 µg/m³	Good
Xiulin estimated	≈ 7 µg/m³	Good
Linnei estimated	≈ 14 µg/m³	Moderate
Yujing estimated	≈ 15 µg/m³	Moderate

Updated 2026-10-01 05:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.