Fine particles
21.8µg/m³Moderate · 1 hourCAMS model • Open-Meteo
TaoyuanAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Taoyuan - latest available concentrations (September 27, 2026, 09:00 local time): PM2.5: 21.8 µg/m³, PM10: 22.4 µg/m³, O₃: 113 µg/m³, NO₂: 26.3 µg/m³, SO₂: 38 µg/m³, CO: 335 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Taoyuan · Air pollutant concentrations
Data time: September 27, 2026 · 09:00 · local timeParticulate matter
22.4µg/m³Fair · 1 hourOzone
113µg/m³Moderate · 1 hourNitrogen dioxide
26.3µg/m³Moderate · 1 hourSulphur dioxide
38µg/m³Fair · 1 hourCarbon monoxide
335µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Taoyuan
Taoyuan - air pollution over recent days (2026-08-31 - 2026-09-26)
Concentrations of all available pollutants for this city.
PM2.5Lowest 12.04 2026-09-06Highest 40.29 2026-09-262026-08-31 - 2026-09-26
PM10Lowest 15.63 2026-09-06Highest 41.36 2026-09-262026-08-31 - 2026-09-26
O₃Lowest 16.46 2026-09-04Highest 100.08 2026-09-072026-08-31 - 2026-09-26
NO₂Lowest 19.37 2026-09-06Highest 60.12 2026-09-042026-08-31 - 2026-09-26
SO₂Lowest 11.41 2026-09-06Highest 47.66 2026-09-262026-08-31 - 2026-09-26
COLowest 278.42 2026-09-06Highest 1,077.42 2026-09-042026-08-31 - 2026-09-26
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-26 | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 40.29 | 30.15 | 19.05 | 18.17 | 19.61 | 18.51 | 15.86 | 21.25 | 12.04 | 13.53 | 16.21 | 19.2 | 22.75 | 16.5 | 21.39 |
| PM10 | 41.36 | 33.71 | 23.32 | 22.96 | 24.89 | 22.53 | 19.54 | 26.62 | 15.63 | 17.13 | 16.55 | 19.94 | 23.41 | 17.37 | 21.88 |
| O₃ | 56.63 | 52.71 | 63.08 | 74.21 | 91.08 | 96.46 | 82.71 | 100.08 | 74.71 | 70.67 | 16.46 | 29.17 | 19.42 | 27.5 | 71.71 |
| NO₂ | 50.86 | 43.42 | 30.47 | 27.69 | 25.09 | 23.64 | 20.17 | 27.6 | 19.37 | 25.16 | 60.12 | 55.75 | 58.11 | 46.21 | 34.91 |
| SO₂ | 47.66 | 23.42 | 16.28 | 14.23 | 16.65 | 20.21 | 17.46 | 19.83 | 11.41 | 14.52 | 26.26 | 19.18 | 28.02 | 21.07 | 26.87 |
| CO | 432.46 | 377.08 | 288.88 | 316 | 292 | 343.96 | 308.46 | 397.38 | 278.42 | 588.13 | 1,077.42 | 492.83 | 540.5 | 486.79 | 444.88 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Taoyuan
Taoyuan - air pollution history (2016-12 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 13.02 2019-06Highest 24.83 2018-022016-12 - 2020-05
PM10Lowest 21.15 2019-08Highest 57.75 2018-022016-12 - 2020-05
O₃ (ppm)Lowest 0.022183 2019-07Highest 0.04345 2020-042016-12 - 2020-05
NO₂ (ppm)Lowest 0.010368 2019-07Highest 0.0208 2017-032016-12 - 2020-05
SO₂ (ppm)Lowest 0.00256 2020-01Highest 0.0042 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.336667 2019-07Highest 0.5465 2017-042016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 15.62 | 17.7 | 18.47 | 19.17 | 19.1 | 13.7 | 14.65 | 18.25 | 13.33 | 13.58 | 13.35 | 13.02 | 16.33 | 20.33 | 21.38 | 18.55 | 19.38 | — | — | — | — | — | — | — | — | — | — | 24.83 | 14.28 | 19.17 | 14.67 | 15.53 | 21.87 | — | — | 14.28 | 17.22 | 24.43 | 22.63 | 21.58 | 18.73 | 20.6 |
| PM10 µg/m³ | 28.28 | 32.6 | 33.92 | 33.92 | 32.02 | 26.8 | 31.95 | 34.8 | 24.65 | 21.15 | 23.03 | 21.52 | 33.73 | 37.55 | 41.03 | 37.15 | 39 | — | — | — | — | — | — | — | — | — | — | 57.75 | 35.9 | 46.17 | 39.23 | 41.55 | 47.88 | — | — | 36.65 | 43.23 | 54.32 | 52.08 | 46.42 | 43.1 | 46.22 |
| O₃ (ppm) | 0.028017 | 0.04345 | 0.03475 | 0.0316 | 0.029967 | 0.028433 | 0.0357 | 0.041517 | 0.02955 | 0.024517 | 0.022183 | 0.023717 | 0.036617 | 0.034983 | 0.03675 | 0.0305 | 0.029583 | — | — | — | — | — | — | — | — | — | — | 0.031767 | 0.028617 | 0.030883 | 0.029333 | 0.033567 | 0.034983 | — | — | 0.023267 | 0.0333 | 0.03685 | 0.038633 | 0.0354 | 0.03045 | 0.028783 |
| NO₂ (ppm) | 0.013758 | 0.015717 | 0.016783 | 0.017333 | 0.017083 | 0.016533 | 0.014133 | 0.014287 | 0.01255 | 0.011 | 0.010368 | 0.013405 | 0.015967 | 0.016095 | 0.0177 | 0.015475 | 0.017867 | — | — | — | — | — | — | — | — | — | — | 0.018383 | 0.016633 | 0.016733 | 0.016183 | 0.013672 | 0.017383 | — | — | 0.014125 | 0.0175 | 0.020117 | 0.0208 | 0.016633 | 0.015783 | 0.016967 |
| SO₂ (ppm) | 0.002697 | 0.002617 | 0.002783 | 0.002908 | 0.00256 | 0.002985 | 0.003082 | 0.003193 | 0.003093 | 0.002912 | 0.002783 | 0.002917 | 0.003015 | 0.003323 | 0.00297 | 0.002775 | 0.003282 | — | — | — | — | — | — | — | — | — | — | 0.003575 | 0.003307 | 0.003488 | 0.00328 | 0.003167 | 0.0042 | — | — | 0.003225 | 0.003748 | 0.003778 | 0.003675 | 0.003153 | 0.00328 | 0.003415 |
| CO (ppm) | 0.420667 | 0.454167 | 0.480167 | 0.474833 | 0.5345 | 0.443667 | 0.378 | 0.410333 | 0.375 | 0.357 | 0.336667 | 0.407167 | 0.463 | 0.502833 | 0.527833 | 0.5005 | 0.5385 | — | — | — | — | — | — | — | — | — | — | 0.490833 | 0.450167 | 0.453 | 0.409667 | 0.362667 | 0.439167 | — | — | 0.419 | 0.473833 | 0.5465 | 0.530333 | 0.4505 | 0.451 | 0.486 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Historical data by station 6
AIR QUALITY ARCHIVE · Dayuan
Dayuan
Station code: Dayuan
Monthly monitoring station data.
PM2.5Lowest 11.5 2019-07Highest 25.1 2018-022016-12 - 2020-05
PM10Lowest 20.9 2019-06Highest 59 2018-022016-12 - 2020-05
O₃ (ppm)Lowest 0.0256 2019-07Highest 0.0509 2020-042016-12 - 2020-05
NO₂ (ppm)Lowest 0.00787 2019-07Highest 0.0182 2017-042016-12 - 2020-05
SO₂ (ppm)Lowest 0.00267 2020-05Highest 0.00559 2018-022016-12 - 2020-05
CO (ppm)Lowest 0.192 2019-07Highest 0.404 2020-012016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 14.8 | 18.1 | 18.3 | 20.4 | 19.6 | 14.4 | 16.3 | 19 | 12.4 | 12.7 | 11.5 | 11.7 | 15.6 | 18.7 | 19.2 | 16.9 | 17.2 | — | — | — | — | — | — | — | — | — | — | 25.1 | 13.2 | 18 | 13.9 | 14.7 | 20.2 | — | — | 14.2 | 16.1 | 24 | 21.8 | 22.3 | 18.3 | 21.7 |
| PM10 µg/m³ | 27.2 | 32.8 | 33.7 | 35.7 | 33.8 | 29.6 | 35.5 | 38.7 | 26.2 | 22.3 | 22.2 | 20.9 | 34 | 34.6 | 37.1 | 35.3 | 38.2 | — | — | — | — | — | — | — | — | — | — | 59 | 35.3 | 49.1 | 39.8 | 42.3 | 48.5 | — | — | 33.4 | 40.2 | 53.2 | 53 | 51.5 | 47 | 47.7 |
| O₃ (ppm) | 0.0315 | 0.0509 | 0.0408 | 0.0367 | 0.0349 | 0.0338 | 0.0395 | 0.0443 | 0.0324 | 0.0264 | 0.0256 | 0.0273 | 0.0423 | 0.0422 | 0.0444 | 0.0385 | 0.0368 | — | — | — | — | — | — | — | — | — | — | 0.0389 | 0.0337 | 0.0342 | 0.0337 | 0.0368 | 0.0372 | — | — | 0.0264 | 0.0371 | 0.0404 | 0.0442 | 0.0395 | 0.0337 | 0.0306 |
| NO₂ (ppm) | 0.0113 | 0.0135 | 0.0142 | 0.0159 | 0.015 | 0.0146 | 0.0139 | 0.0144 | 0.012 | 0.00984 | 0.00787 | 0.0114 | 0.0147 | 0.0139 | 0.0153 | 0.0132 | 0.0163 | — | — | — | — | — | — | — | — | — | — | 0.0161 | 0.0151 | 0.0162 | 0.0154 | 0.0134 | 0.0149 | — | — | 0.0124 | 0.0154 | 0.0182 | 0.0181 | 0.0154 | 0.0155 | 0.0172 |
| SO₂ (ppm) | 0.00267 | 0.00287 | 0.00329 | 0.00383 | 0.0029 | 0.00342 | 0.0038 | 0.00371 | 0.00333 | 0.00342 | 0.00326 | 0.0031 | 0.00323 | 0.00353 | 0.00329 | 0.003 | 0.00307 | — | — | — | — | — | — | — | — | — | — | 0.00559 | 0.0033 | 0.00353 | 0.0035 | 0.00306 | 0.00468 | — | — | 0.00457 | 0.00419 | 0.0044 | 0.00365 | 0.00375 | 0.00342 | 0.00375 |
| CO (ppm) | 0.288 | 0.337 | 0.325 | 0.346 | 0.404 | 0.303 | 0.244 | 0.265 | 0.224 | 0.218 | 0.192 | 0.249 | 0.284 | 0.333 | 0.354 | 0.348 | 0.37 | — | — | — | — | — | — | — | — | — | — | 0.363 | 0.323 | 0.323 | 0.274 | 0.231 | 0.274 | — | — | 0.262 | 0.312 | 0.398 | 0.371 | 0.33 | 0.309 | 0.334 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
AIR QUALITY ARCHIVE · Guanyin
Guanyin
Station code: Guanyin
Monthly monitoring station data.
PM2.5Lowest 9.29 2019-07Highest 30.7 2018-022016-12 - 2020-05
PM10Lowest 23.1 2019-06Highest 75.9 2018-022016-12 - 2020-05
O₃ (ppm)Lowest 0.0243 2019-07Highest 0.0498 2020-042016-12 - 2020-05
NO₂ (ppm)Lowest 0.00513 2019-07Highest 0.0151 2017-032016-12 - 2020-05
SO₂ (ppm)Lowest 0.00242 2020-05Highest 0.00487 2017-032016-12 - 2020-05
CO (ppm)Lowest 0.144 2019-08Highest 0.371 2020-012016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 12.8 | 17.4 | 16.9 | 18.8 | 18.7 | 14.1 | 16.4 | 20 | 14.5 | 12.9 | 9.29 | 11 | 15.8 | 15.8 | 21.8 | 19.5 | 24.8 | — | — | — | — | — | — | — | — | — | — | 30.7 | 19 | 25.6 | 18.8 | 18.9 | 22.9 | — | — | 14.2 | 17.6 | 25.7 | 22.5 | 22.1 | 19.6 | 26 |
| PM10 µg/m³ | 25.6 | 35.1 | 35.4 | 38.7 | 35.5 | 30.7 | 38.2 | 41 | 29.5 | 24.5 | 27 | 23.1 | 35.7 | 36 | 43.7 | 36.6 | 41.1 | — | — | — | — | — | — | — | — | — | — | 75.9 | 43.8 | 56.7 | 48.1 | 49.2 | 51.5 | — | — | 36.6 | 46.2 | 56.9 | 56.3 | 53.7 | 47.9 | 52 |
| O₃ (ppm) | 0.0307 | 0.0498 | 0.0406 | 0.038 | 0.0371 | 0.0355 | 0.0421 | 0.0487 | 0.035 | 0.0279 | 0.0243 | 0.0276 | 0.0402 | 0.0414 | 0.0428 | 0.0363 | 0.0354 | — | — | — | — | — | — | — | — | — | — | 0.036 | 0.0313 | 0.0326 | 0.0315 | 0.0381 | 0.0337 | — | — | 0.027 | 0.0372 | 0.0415 | 0.0447 | 0.0397 | 0.0361 | 0.0304 |
| NO₂ (ppm) | 0.00775 | 0.0108 | 0.011 | 0.0111 | 0.0103 | 0.0107 | 0.009 | 0.00903 | 0.0083 | 0.00673 | 0.00513 | 0.00733 | 0.0107 | 0.00857 | 0.0105 | 0.00725 | 0.0106 | — | — | — | — | — | — | — | — | — | — | 0.0122 | 0.0121 | 0.0126 | 0.0109 | 0.00935 | 0.0121 | — | — | 0.00914 | 0.0134 | 0.0149 | 0.0151 | 0.012 | 0.0103 | 0.0144 |
| SO₂ (ppm) | 0.00242 | 0.00283 | 0.0032 | 0.00341 | 0.00277 | 0.00352 | 0.00393 | 0.00403 | 0.00353 | 0.003 | 0.00257 | 0.00253 | 0.00336 | 0.00337 | 0.00332 | 0.00354 | 0.00403 | — | — | — | — | — | — | — | — | — | — | 0.00414 | 0.004 | 0.0045 | 0.004 | 0.00426 | 0.00416 | — | — | 0.00307 | 0.00416 | 0.0038 | 0.00487 | 0.0045 | 0.00368 | 0.00408 |
| CO (ppm) | 0.222 | 0.299 | 0.307 | 0.308 | 0.371 | 0.284 | 0.232 | 0.255 | 0.198 | 0.144 | 0.156 | 0.208 | 0.282 | 0.297 | 0.354 | 0.342 | 0.35 | — | — | — | — | — | — | — | — | — | — | 0.332 | 0.302 | 0.309 | 0.247 | 0.213 | 0.242 | — | — | 0.191 | 0.27 | 0.331 | 0.334 | 0.297 | 0.294 | 0.344 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
AIR QUALITY ARCHIVE · Longtan
Longtan
Station code: Longtan
Monthly monitoring station data.
PM2.5Lowest 11.6 2019-06Highest 24.4 2017-042016-12 - 2020-05
PM10Lowest 19.3 2019-08Highest 54.2 2017-032016-12 - 2020-05
O₃ (ppm)Lowest 0.0261 2017-06Highest 0.0482 2020-042016-12 - 2020-05
NO₂ (ppm)Lowest 0.00771 2019-07Highest 0.0175 2017-032016-12 - 2020-05
SO₂ (ppm)Lowest 0.002 2017-06Highest 0.003 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.234 2019-07Highest 0.478 2020-012016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 16.2 | 16.8 | 18.9 | 18 | 18.8 | 12.7 | 12.8 | 17.4 | 12.2 | 12.8 | 13.3 | 11.6 | 15.4 | 21.6 | 20.4 | 18.9 | 18.7 | — | — | — | — | — | — | — | — | — | — | 23.6 | 13.9 | 19 | 14.3 | 16.1 | 22.4 | — | — | 14.3 | 18.6 | 24.4 | 23.6 | 22.3 | 20.6 | 21.6 |
| PM10 µg/m³ | 26.7 | 29 | 32.5 | 28.9 | 28.1 | 21.6 | 25.8 | 31.3 | 21.6 | 19.3 | 19.8 | 21.7 | 33.4 | 41.8 | 41.5 | 38.6 | 39.1 | — | — | — | — | — | — | — | — | — | — | 48.4 | 31 | 33.8 | 35.5 | 37.2 | 45.6 | — | — | 38 | 44.7 | 53.6 | 54.2 | 48.1 | 40.7 | 45.7 |
| O₃ (ppm) | 0.0332 | 0.0482 | 0.0383 | 0.0347 | 0.0321 | 0.0305 | 0.0399 | 0.0452 | 0.0331 | 0.0278 | 0.0261 | 0.0274 | 0.041 | 0.0379 | 0.0393 | 0.0334 | 0.0319 | — | — | — | — | — | — | — | — | — | — | 0.0346 | 0.0314 | 0.0356 | 0.0326 | 0.0367 | 0.0407 | — | — | 0.0261 | 0.0356 | 0.0398 | 0.039 | 0.0361 | 0.0295 | 0.0291 |
| NO₂ (ppm) | 0.0107 | 0.0111 | 0.0134 | 0.0134 | 0.0149 | 0.0131 | 0.0091 | 0.00929 | 0.0093 | 0.00813 | 0.00771 | 0.0096 | 0.0114 | 0.0124 | 0.0141 | 0.0128 | 0.0152 | — | — | — | — | — | — | — | — | — | — | 0.0144 | 0.0139 | 0.0119 | 0.012 | 0.00948 | 0.0128 | — | — | 0.00921 | 0.0131 | 0.0148 | 0.0175 | 0.0128 | 0.0129 | 0.0137 |
| SO₂ (ppm) | 0.00292 | 0.00227 | 0.00229 | 0.00228 | 0.00227 | 0.00248 | 0.00223 | 0.00245 | 0.0026 | 0.00232 | 0.00239 | 0.00223 | 0.00218 | 0.00238 | 0.00238 | 0.00225 | 0.00266 | — | — | — | — | — | — | — | — | — | — | 0.00241 | 0.00227 | 0.0023 | 0.0023 | 0.00229 | 0.003 | — | — | 0.002 | 0.00252 | 0.00263 | 0.00263 | 0.00221 | 0.00261 | 0.00233 |
| CO (ppm) | 0.337 | 0.361 | 0.405 | 0.4 | 0.478 | 0.383 | 0.274 | 0.316 | 0.281 | 0.258 | 0.234 | 0.276 | 0.342 | 0.389 | 0.416 | 0.439 | 0.472 | — | — | — | — | — | — | — | — | — | — | 0.449 | 0.392 | 0.373 | 0.35 | 0.292 | 0.333 | — | — | 0.285 | 0.355 | 0.423 | 0.467 | 0.392 | 0.412 | 0.43 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
AIR QUALITY ARCHIVE · Pingzhen
Pingzhen
Station code: Pingzhen
Monthly monitoring station data.
PM2.5Lowest 12.7 2019-06Highest 24.9 2018-022016-12 - 2020-05
PM10Lowest 22.4 2019-06Highest 57.7 2018-022016-12 - 2020-05
O₃ (ppm)Lowest 0.0235 2019-07Highest 0.0441 2020-042016-12 - 2020-05
NO₂ (ppm)Lowest 0.0109 2019-07Highest 0.0209 2018-022016-12 - 2020-05
SO₂ (ppm)Lowest 0.00193 2020-04Highest 0.00389 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.228 2019-07Highest 0.528 2020-012016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 15.4 | 17.5 | 18.2 | 18.8 | 19 | 13.1 | 13.4 | 17.8 | 13.5 | 13.1 | 12.9 | 12.7 | 15.6 | 20.6 | 21.1 | 19.5 | 18.6 | — | — | — | — | — | — | — | — | — | — | 24.9 | 13.6 | 16.4 | 12.8 | 13.5 | 20.1 | — | — | 13.1 | 15.7 | 23.6 | 21.3 | 20.9 | 17.2 | 18.2 |
| PM10 µg/m³ | 32.1 | 34.5 | 34.7 | 34 | 31.9 | 26.9 | 31.4 | 36.6 | 27.2 | 22.6 | 22.8 | 22.4 | 31.7 | 35.7 | 40.9 | 38.7 | 39.3 | — | — | — | — | — | — | — | — | — | — | 57.7 | 35.3 | 45.7 | 36.8 | 40.3 | 46.9 | — | — | 35.1 | 42 | 51.4 | 50.8 | 46.1 | 42.1 | 44.6 |
| O₃ (ppm) | 0.0287 | 0.0441 | 0.0349 | 0.0313 | 0.0294 | 0.027 | 0.0359 | 0.0417 | 0.0298 | 0.0256 | 0.0235 | 0.0243 | 0.039 | 0.0364 | 0.0384 | 0.0298 | 0.029 | — | — | — | — | — | — | — | — | — | — | 0.0311 | 0.0277 | 0.0305 | 0.03 | 0.0352 | 0.0376 | — | — | 0.0239 | 0.0356 | 0.0376 | 0.039 | 0.0362 | 0.0307 | 0.0288 |
| NO₂ (ppm) | 0.0148 | 0.0168 | 0.018 | 0.0187 | 0.0187 | 0.0187 | 0.0147 | 0.0147 | 0.0138 | 0.0115 | 0.0109 | 0.0143 | 0.016 | 0.0168 | 0.0185 | 0.0178 | 0.0193 | — | — | — | — | — | — | — | — | — | — | 0.0209 | 0.0172 | 0.0177 | 0.0168 | 0.0129 | 0.0165 | — | — | 0.0136 | 0.0162 | 0.019 | 0.0205 | 0.016 | 0.0157 | 0.0163 |
| SO₂ (ppm) | 0.00217 | 0.00193 | 0.00239 | 0.00217 | 0.0021 | 0.00242 | 0.00233 | 0.00252 | 0.00267 | 0.00248 | 0.00232 | 0.0025 | 0.00245 | 0.0029 | 0.00245 | 0.00229 | 0.00276 | — | — | — | — | — | — | — | — | — | — | 0.00268 | 0.0025 | 0.00307 | 0.00274 | 0.00265 | 0.00389 | — | — | 0.00279 | 0.00294 | 0.0033 | 0.00329 | 0.00246 | 0.00281 | 0.00283 |
| CO (ppm) | 0.358 | 0.432 | 0.453 | 0.459 | 0.528 | 0.43 | 0.371 | 0.392 | 0.343 | 0.285 | 0.228 | 0.303 | 0.396 | 0.425 | 0.483 | 0.499 | 0.526 | — | — | — | — | — | — | — | — | — | — | 0.514 | 0.471 | 0.461 | 0.391 | 0.317 | 0.337 | — | — | 0.291 | 0.373 | 0.453 | 0.473 | 0.403 | 0.411 | 0.43 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
AIR QUALITY ARCHIVE · Taoyuan
Taoyuan
Station code: Taoyuan
Monthly monitoring station data.
PM2.5Lowest 13 2019-09Highest 25.5 2017-042016-12 - 2020-05
PM10Lowest 18.3 2019-06Highest 48.9 2017-042016-12 - 2020-05
O₃ (ppm)Lowest 0.0185 2019-07Highest 0.0393 2019-102016-12 - 2020-05
NO₂ (ppm)Lowest 0.01 2019-08Highest 0.0218 2017-042016-12 - 2020-05
SO₂ (ppm)Lowest 0.00293 2017-02Highest 0.00558 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.305 2019-07Highest 0.564 2017-042016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 18.9 | 18.3 | 18.9 | 19.2 | 19 | 14.1 | 14.6 | 17.6 | 13 | 13.3 | 15 | 13.2 | 14.4 | 21.2 | 20.4 | 17.4 | 17.2 | — | — | — | — | — | — | — | — | — | — | 21.8 | 13.3 | 18.9 | 14.5 | 15 | 23.5 | — | — | 15.9 | 18.2 | 25.5 | 23 | 20.5 | 18.3 | 17.9 |
| PM10 µg/m³ | 29.7 | 31.4 | 32.8 | 32 | 30.2 | 25.2 | 29.8 | 32.3 | 21.7 | 19 | 24.8 | 18.3 | 31.4 | 37.5 | 40 | 34.4 | 35.3 | — | — | — | — | — | — | — | — | — | — | 44.6 | 29.6 | 39.9 | 31.6 | 34 | 41.5 | — | — | 34.4 | 37 | 48.9 | 44.4 | 38.1 | 37.8 | 37.8 |
| O₃ (ppm) | 0.0238 | 0.0351 | 0.0292 | 0.0262 | 0.0258 | 0.0248 | 0.0314 | 0.0393 | 0.0271 | 0.0231 | 0.0185 | 0.0208 | 0.0323 | 0.0285 | 0.0312 | 0.0252 | 0.0253 | — | — | — | — | — | — | — | — | — | — | 0.0288 | 0.0273 | 0.0297 | 0.0278 | 0.0313 | 0.0351 | — | — | 0.0226 | 0.0321 | 0.0348 | 0.0366 | 0.034 | 0.0292 | 0.0308 |
| NO₂ (ppm) | 0.0147 | 0.0156 | 0.0175 | 0.0183 | 0.0173 | 0.0167 | 0.0135 | 0.0129 | 0.0103 | 0.01 | 0.0112 | 0.015 | 0.015 | 0.0173 | 0.0172 | 0.0157 | 0.0175 | — | — | — | — | — | — | — | — | — | — | 0.0176 | 0.0159 | 0.0158 | 0.0162 | 0.0135 | 0.0181 | — | — | 0.0164 | 0.0177 | 0.0218 | 0.0205 | 0.0163 | 0.0159 | 0.0153 |
| SO₂ (ppm) | 0.00367 | 0.00357 | 0.0034 | 0.00338 | 0.00313 | 0.00352 | 0.00383 | 0.00384 | 0.00393 | 0.00368 | 0.004 | 0.00454 | 0.00423 | 0.00493 | 0.00361 | 0.00314 | 0.0041 | — | — | — | — | — | — | — | — | — | — | 0.00336 | 0.0051 | 0.0043 | 0.00437 | 0.0039 | 0.00558 | — | — | 0.00421 | 0.00503 | 0.00477 | 0.00413 | 0.00293 | 0.00374 | 0.004 |
| CO (ppm) | 0.4 | 0.458 | 0.486 | 0.5 | 0.549 | 0.485 | 0.39 | 0.418 | 0.359 | 0.314 | 0.305 | 0.387 | 0.444 | 0.493 | 0.51 | 0.52 | 0.543 | — | — | — | — | — | — | — | — | — | — | 0.504 | 0.43 | 0.427 | 0.404 | 0.35 | 0.419 | — | — | 0.415 | 0.443 | 0.564 | 0.541 | 0.453 | 0.453 | 0.446 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
AIR QUALITY ARCHIVE · Zhongli
Zhongli
Station code: Zhongli
Monthly monitoring station data.
PM2.5Lowest 12.7 2018-01Highest 25.4 2019-032016-12 - 2020-05
PM10Lowest 19.2 2019-08Highest 61.9 2017-042016-12 - 2020-05
O₃ (ppm)Lowest 0.0136 2017-06Highest 0.0326 2020-042016-12 - 2020-05
NO₂ (ppm)Lowest 0.0194 2019-07Highest 0.0331 2017-032016-12 - 2020-05
SO₂ (ppm)Lowest 0.00213 2020-03Highest 0.00389 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.757 2019-11Highest 1.11 2017-042016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 15.6 | 18.1 | 19.6 | 19.8 | 19.5 | 13.8 | 14.4 | 17.7 | 14.4 | 16.7 | 18.1 | 17.9 | 21.2 | 24.1 | 25.4 | 19.1 | 19.8 | — | — | — | — | — | — | — | — | — | — | 22.9 | 12.7 | 17.1 | 13.7 | 15 | 22.1 | — | — | 14 | 17.1 | 23.4 | 23.6 | 21.4 | 18.4 | 18.2 |
| PM10 µg/m³ | 28.4 | 32.8 | 34.4 | 34.2 | 32.6 | 26.8 | 31 | 28.9 | 21.7 | 19.2 | 21.6 | 22.7 | 36.2 | 39.7 | 43 | 39.3 | 41 | — | — | — | — | — | — | — | — | — | — | 60.9 | 40.4 | 51.8 | 43.6 | 46.3 | 53.3 | — | — | 42.4 | 49.3 | 61.9 | 53.8 | 41 | 43.1 | 49.5 |
| O₃ (ppm) | 0.0202 | 0.0326 | 0.0247 | 0.0227 | 0.0205 | 0.019 | 0.0254 | 0.0299 | 0.0199 | 0.0163 | 0.0151 | 0.0149 | 0.0249 | 0.0235 | 0.0244 | 0.0198 | 0.0191 | — | — | — | — | — | — | — | — | — | — | 0.0212 | 0.0203 | 0.0227 | 0.0204 | 0.0233 | 0.0256 | — | — | 0.0136 | 0.0222 | 0.027 | 0.0283 | 0.0269 | 0.0235 | 0.023 |
| NO₂ (ppm) | 0.0233 | 0.0265 | 0.0266 | 0.0266 | 0.0263 | 0.0254 | 0.0246 | 0.0254 | 0.0216 | 0.0198 | 0.0194 | 0.0228 | 0.028 | 0.0276 | 0.0306 | 0.0261 | 0.0283 | — | — | — | — | — | — | — | — | — | — | 0.0291 | 0.0256 | 0.0262 | 0.0258 | 0.0234 | 0.0299 | — | — | 0.024 | 0.0292 | 0.032 | 0.0331 | 0.0273 | 0.0244 | 0.0249 |
| SO₂ (ppm) | 0.00233 | 0.00223 | 0.00213 | 0.00238 | 0.00219 | 0.00255 | 0.00237 | 0.00261 | 0.0025 | 0.00257 | 0.00216 | 0.0026 | 0.00264 | 0.00283 | 0.00277 | 0.00243 | 0.00307 | — | — | — | — | — | — | — | — | — | — | 0.00327 | 0.00267 | 0.00323 | 0.00277 | 0.00284 | 0.00389 | — | — | 0.00271 | 0.00365 | 0.00377 | 0.00348 | 0.00307 | 0.00342 | 0.0035 |
| CO (ppm) | 0.919 | 0.838 | 0.905 | 0.836 | 0.877 | 0.777 | 0.757 | 0.816 | 0.845 | 0.923 | 0.905 | 1.02 | 1.03 | 1.08 | 1.05 | 0.855 | 0.97 | — | — | — | — | — | — | — | — | — | — | 0.783 | 0.783 | 0.825 | 0.792 | 0.773 | 1.03 | — | — | 1.07 | 1.09 | 1.11 | 0.996 | 0.828 | 0.827 | 0.932 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
Environment and quality of life ratings · Taoyuan
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Taoyuan | Hong Kong | Macau | Mexico | Philippines | South Korea |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 35% | 52% | — | 56% | 45% | 61% |
| Pleasure of spending time in the city | 35% | 43% | — | 57% | 39% | 43% |
| Air Pollution | 60% | 67% | — | 53% | 64% | 69% |
| Garbage Disposal | 30% | 52% | — | 52% | 35% | 62% |
| Availability and quality of drinking water | 35% | 66% | — | 57% | 54% | 72% |
| Cleanliness and tidiness | 15% | 54% | — | 45% | 38% | 63% |
| Noise and Light pollution | 70% | 66% | — | 48% | 60% | 50% |
| Water Pollution | 70% | 53% | — | 55% | 74% | 38% |
Air quality in nearby cities
All cities →Taiwan↗
Taipei
PM2.530
PM1032.4
µg/m³
PM2.5 · ModerateNO₂ 52.3O₃ 81
September 27, 202609:00
Taiwan↗
Hsinchu
PM2.519.2
PM1020.3
µg/m³
PM2.5 · ModerateNO₂ 24.7O₃ 105
September 27, 202609:00
Taiwan↗
Keelung
PM2.530
PM1032.4
µg/m³
PM2.5 · ModerateNO₂ 52.3O₃ 81
September 27, 202609:00
Taiwan↗
Taichung City
PM2.520.8
PM1021.4
µg/m³
PM2.5 · ModerateNO₂ 23O₃ 120
September 27, 202609:00
Taiwan↗
Hualian
PM2.528.4
PM1029.6
µg/m³
PM2.5 · ModerateNO₂ 9.1O₃ 128
September 27, 202609:00
Taiwan↗
Nantou
PM2.520.8
PM1021.4
µg/m³
PM2.5 · ModerateNO₂ 23O₃ 120
September 27, 202609:00
Taiwan↗
Douliu
PM2.519.9
PM1024
µg/m³
PM2.5 · ModerateNO₂ 34.9O₃ 89
September 27, 202609:00
Taiwan↗
Tainan
PM2.519
PM1023.3
µg/m³
PM2.5 · ModerateNO₂ 55.2O₃ 46
September 27, 202609:00
Taiwan · air quality in other cities
WEATHER & SURROUNDINGS
Taiwan · weather forecast
Daily maximum and minimum temperatures. Forecast point: 23.6978, 120.9605. Forecast for a country reference point; conditions in the city may differ.
Scroll the forecast to see the following days.
Taiwan · September 25, 2026: minimum temperature 7.6°C, maximum 15°C. Wind: 13.9 km/h. Humidity: 61%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-25 | 14.6 | 7.6 | 15 | 9.2 | 4.6 | 3.9 | 61 | 4 |
| 2026-09-26 | 13.9 | 7.6 | 16.8 | 9.5 | 1.8 | 4 | 67 | 11 |
| 2026-09-27 | 15.9 | 7.4 | 17 | 9.7 | 0.4 | 3.9 | 56 | 58 |
| 2026-09-28 | 16.5 | 7.9 | 16.8 | 9.5 | 0.1 | 4.1 | 55 | 3 |
| 2026-09-29 | 16.4 | 8.3 | 16.4 | 8.8 | 0.2 | 3.9 | 56 | 24 |
| 2026-09-30 | 15.9 | 7.8 | 15.9 | 9 | 1.3 | 3.9 | 60 | 6 |
| 2026-10-01 | 14.9 | 8.1 | 14.9 | 9.4 | 1.4 | 3.5 | 72 | 42 |
| 2026-10-02 | 15.1 | 8.2 | 15.1 | 9.3 | 1.2 | 3.3 | 69 | 80 |
| 2026-10-03 | 16.5 | 8 | 16.5 | 9.1 | 1.4 | 3.4 | 55 | 46 |
| 2026-10-04 | 16.1 | 7.8 | 16.1 | 9.1 | 2 | 3.7 | 59 | 47 |
| 2026-10-05 | 17.6 | 7.2 | 17.6 | 8.7 | 0.8 | 3.5 | 48 | 98 |
| 2026-10-06 | 16.8 | 8.2 | 16.8 | 8.6 | 1 | 2.7 | 53 | 11 |
| 2026-10-07 | 13.8 | 6.5 | 13.8 | 6.5 | 0.4 | 3.7 | 68 | 62 |
| 2026-10-08 | 12.6 | 4.3 | 12.6 | 4.3 | 11 | 3.9 | 55 | 10 |
| 2026-10-09 | 13.2 | 3.7 | 13.2 | 4.5 | 0.4 | 3.8 | 52 | 5 |
| 2026-10-10 | 14.5 | 3.5 | 14.5 | 4.8 | 2.5 | 3.4 | 41 | 37 |
| 2026-10-11 | 14.1 | 4 | 14.1 | 6.3 | — | 3.7 | 41 | — |
UV index by day · Taiwan
Data for a country reference point. Local conditions may differ.
SPF 50, long sleeves and shade between 10:00-16:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Taiwan · September 26, 2026: UV index: 8.5 .
| Indicator | 2026-09-26 | 2026-09-27 | 2026-09-28 | 2026-09-29 | 2026-09-30 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-10-04 | 2026-10-05 | 2026-10-06 | 2026-10-07 | 2026-10-08 | 2026-10-09 | 2026-10-10 | 2026-10-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 8.5 | 8.6 | 8.6 | 8.6 | 8.2 | 6.4 | 6.3 | 8.6 | 6.6 | 8.6 | 6.1 | 6.4 | 8.4 | 8.8 | 8.6 | — |
AIR QUALITY QUESTIONS
Taoyuan · air pollution - questions and answers
What do the latest air quality data show for Taoyuan?
Taoyuan - latest available concentrations (September 27, 2026, 09:00 local time): PM2.5: 21.8 µg/m³, PM10: 22.4 µg/m³, O₃: 113 µg/m³, NO₂: 26.3 µg/m³, SO₂: 38 µg/m³, CO: 335 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Taoyuan over the past week?
The highest available daily mean PM2.5 was 40.3 µg/m³ (September 26, 2026). This comparison covers 7 days with data in the seven days before September 27, 2026. The day of the latest reading is excluded because it may be incomplete.
What period does the pollution history for Taoyuan cover?
Available monthly means cover 2016-12 - 2020-05. The tables include PM2.5, PM10, O₃ (ppm), NO₂ (ppm), SO₂ (ppm), CO (ppm). Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for Taoyuan an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Taoyuan?
For September 26, 2026, the forecast UV index is 8.5. The UV section also shows the following available days. The forecast is for a country reference point (Taiwan), not the city itself.
What wind speed is forecast for Taoyuan?
For September 25, 2026, forecast wind speed is 13.9 km/h. The weather table includes wind, temperature and other available parameters for subsequent days. These data describe a country reference point (Taiwan); local wind may differ.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.