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Air quality · Takao, Taiwan

Kaohsiung Air Quality Index (AQI) today

Modelled estimate for 20:00 local time (UTC+8), refreshed 3 Nov, 07:52 UTC+0.

133 Unhealthy for sensitive groups

Live estimate · modelled

US EPA AQI20:00 UTC+8, 3 Nov Main pollutant: PM2.5

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

This page uses EPA’s NowCast, which follows the last few hours, as the US government’s AirNow does. On a 24-hour average of particles, as many apps show, it is 119.

Over the next 24 hours the model expects the AQI to range from 81 around 11:00 to 145 around 20:00 (4 Nov).

130th most polluted of 849 cities worldwide right now, 2nd of 4 in Taiwan.

What to do today

  • Long walk or run outside Shorter if you have asthma or heart disease
  • Kids playing outside OK, less for kids with asthma
  • Airing the house Open
  • Mask outdoors If you are in a sensitive group

Based on the US EPA’s health statement: “Members of sensitive groups may experience health effects. The general public is less likely to be affected.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

21:00 · 104 22:00 · 118 23:00 · 130 00:00 · 139 01:00 · 143 02:00 · 143 03:00 · 139 04:00 · 133 05:00 · 127 06:00 · 126 07:00 · 130 08:00 · 113 09:00 · 103 10:00 · 96 11:00 · 93 12:00 · 92 13:00 · 93 14:00 · 93 15:00 · 94 16:00 · 104 17:00 · 110 18:00 · 123 19:00 · 132 20:00 · 133 21:00 · 128 22:00 · 126 23:00 · 126 00:00 · 124 01:00 · 122 02:00 · 119 03:00 · 116 04:00 · 107 05:00 · 98 06:00 · 95 07:00 · 97 08:00 · 91 09:00 · 86 10:00 · 82 11:00 · 81 12:00 · 82 13:00 · 84 14:00 · 86 15:00 · 88 16:00 · 90 17:00 · 94 18:00 · 105 19:00 · 123 20:00 · 145 21:00 · 155 22:00 · 159 23:00 · 161 00:00 · 160 01:00 · 159 02:00 · 156 03:00 · 153 04:00 · 147 05:00 · 143 06:00 · 142 07:00 · 142 08:00 · 134 09:00 · 120 10:00 · 114 11:00 · 109 12:00 · 107 13:00 · 108 14:00 · 111 15:00 · 113 Now

US EPA AQI per hour, UTC+8. Particles use EPA’s NowCast (a 12-hour weighted average), ozone and CO an 8-hour average. Lighter bars are the CAMS forecast.

Show as a table
TimeAQI
Mon 21:00104
Mon 22:00118
Mon 23:00130
Tue 00:00139
Tue 01:00143
Tue 02:00143
Tue 03:00139
Tue 04:00133
Tue 05:00127
Tue 06:00126
Tue 07:00130
Tue 08:00113
Tue 09:00103
Tue 10:0096
Tue 11:0093
Tue 12:0092
Tue 13:0093
Tue 14:0093
Tue 15:0094
Tue 16:00104
Tue 17:00110
Tue 18:00123
Tue 19:00132
Tue 20:00 · Now133
Tue 21:00 · Forecast128
Tue 22:00 · Forecast126
Tue 23:00 · Forecast126
Wed 00:00 · Forecast124
Wed 01:00 · Forecast122
Wed 02:00 · Forecast119
Wed 03:00 · Forecast116
Wed 04:00 · Forecast107
Wed 05:00 · Forecast98
Wed 06:00 · Forecast95
Wed 07:00 · Forecast97
Wed 08:00 · Forecast91
Wed 09:00 · Forecast86
Wed 10:00 · Forecast82
Wed 11:00 · Forecast81
Wed 12:00 · Forecast82
Wed 13:00 · Forecast84
Wed 14:00 · Forecast86
Wed 15:00 · Forecast88
Wed 16:00 · Forecast90
Wed 17:00 · Forecast94
Wed 18:00 · Forecast105
Wed 19:00 · Forecast123
Wed 20:00 · Forecast145
Wed 21:00 · Forecast155
Wed 22:00 · Forecast159
Wed 23:00 · Forecast161
Thu 00:00 · Forecast160
Thu 01:00 · Forecast159
Thu 02:00 · Forecast156
Thu 03:00 · Forecast153
Thu 04:00 · Forecast147
Thu 05:00 · Forecast143
Thu 06:00 · Forecast142
Thu 07:00 · Forecast142
Thu 08:00 · Forecast134
Thu 09:00 · Forecast120
Thu 10:00 · Forecast114
Thu 11:00 · Forecast109
Thu 12:00 · Forecast107
Thu 13:00 · Forecast108
Thu 14:00 · Forecast111
Thu 15:00 · Forecast113

Pollutants this hour

  • PM2.5 49.2 µg/m³ 24-hour mean 42.8 µg/m³ · 2.9× WHO’s 24-hour guideline (15) 133
  • PM10 51 µg/m³ 46
  • O₃ 5 µg/m³ 27
  • NO₂ 111 µg/m³ 55
  • SO₂ 57 µg/m³ 30
  • CO 1.68 mg/m³ 10

Modelled concentrations at the city’s location (CAMS). The sub-index uses the same averaging as the headline, so the highest one is the AQI.

Nearby cities

City AQI
Tainan Taiwan 133
Taichung Taiwan 146
Taipei Taiwan 90
Hong Kong Hong Kong 88
Shenzhen China 88
Dongguan China 113
Guangzhou China 145

Where this number comes from

The Copernicus Atmosphere Monitoring Service (CAMS) forecasts air pollution worldwide on a grid (about 11 km over Europe, about 45 km elsewhere). We take the grid value at Kaohsiung’s coordinates and score it with the US EPA’s method. It is a model, not a measurement: a nearby monitoring station can read quite differently, especially next to busy roads or during fires and dust storms.

Full methodology · Data: CAMS via Open-Meteo (CC BY 4.0); city list: GeoNames (CC BY 4.0).

  • Good 0–50
  • Moderate 51–100
  • Unhealthy for sensitive groups 101–150
  • Unhealthy 151–200
  • Very unhealthy 201–300
  • Hazardous 301–500

Questions

What is the AQI in Kaohsiung right now?
133 on the US EPA scale (Unhealthy for sensitive groups) at 20:00 UTC+8, 3 Nov. PM2.5 is the pollutant with the highest sub-index. This is a modelled estimate from the Copernicus Atmosphere Monitoring Service (CAMS), not a reading from a monitoring station.

Is it safe to exercise outside in Kaohsiung today?
For most people, yes; people with asthma, heart or lung disease, older adults and children should take it easier. The EPA’s statement for “Unhealthy for sensitive groups”: Members of sensitive groups may experience health effects. The general public is less likely to be affected. General guidance, not medical advice.

Will the air in Kaohsiung get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 81 around 11:00 to 145 around 20:00 (4 Nov). Forecasts beyond a day are less certain.

How does Kaohsiung compare with other cities?
Right now it is the 130th most polluted of 849 cities we track worldwide, and 2nd of 4 in Taiwan, all on the same US EPA scale.

Why does another app show a different AQI for Kaohsiung?
Apps differ in source (government stations, low-cost sensors or a model like this one), in scale (US EPA, European, or a national index) and in averaging (hourly or NowCast, 8-hour, 24-hour). This page uses the US EPA AQI with EPA’s NowCast for particles, computed from the CAMS forecast for the city’s location.