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Keelung (Taiwan) (TW)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Light rain
18°C
Light rain
Humidity
94.5%
Wind
5 m/s
Pressure
1018.9 hPa
Direction
67°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
18° / 21°
Precip.
5.1mm
Max wind
6.8 m/s

Hourly Forecast

20.03
Now
Weather
18°
0.2
5
20.03
01:00
Weather
19°
0.1
6
20.03
02:00
Weather
20°
6
20.03
03:00
Weather
20°
6
20.03
04:00
Weather
20°
6
20.03
05:00
Weather
21°
6
20.03
06:00
Weather
21°
0.1
6
20.03
07:00
Weather
21°
6
20.03
08:00
Weather
21°
6
20.03
09:00
Weather
20°
5
20.03
10:00
Weather
19°
0.1
20.03
11:00
Weather
19°
0.5
6
20.03
12:00
Weather
19°
0.7
7
20.03
13:00
Weather
19°
0.5
7
20.03
14:00
Weather
18°
0.4
7
20.03
15:00
Weather
18°
0.3
6
20.03
16:00
Weather
18°
0.5
6
20.03
17:00
Weather
18°
0.3
5
20.03
18:00
Weather
18°
0.2
5
20.03
19:00
Weather
18°
0.2
5
20.03
20:00
Weather
18°
0.3
6
20.03
21:00
Weather
18°
0.3
6
20.03
22:00
Weather
18°
0.2
6
20.03
23:00
Weather
18°
0.2
6

Temperature

21°C
18°C
00:00
18°C
01:00
19°C
02:00
20°C
03:00
20°C
04:00
20°C
05:00
21°C
06:00
21°C
07:00
21°C
08:00
21°C
09:00
20°C
10:00
19°C
11:00
19°C
12:00
19°C
13:00
19°C
14:00
18°C
15:00
18°C
16:00
18°C
17:00
18°C
18:00
18°C
19:00
18°C
20:00
18°C
21:00
18°C
22:00
18°C
23:00
18°C
00:00 11:00 23:00

Precipitation

0.7mm
0mm
00:00
0.2mm
01:00
0.1mm
06:00
0.1mm
10:00
0.1mm
11:00
0.5mm
12:00
0.7mm
13:00
0.5mm
14:00
0.4mm
15:00
0.3mm
16:00
0.5mm
17:00
0.3mm
18:00
0.2mm
19:00
0.2mm
20:00
0.3mm
21:00
0.3mm
22:00
0.2mm
23:00
0.2mm
00:00 11:00 23:00

Wind

6.8m/s
0m/s
00:00
5.2 m/s
01:00
5.6 m/s
02:00
5.8 m/s
03:00
5.6 m/s
04:00
5.8 m/s
05:00
6 m/s
06:00
6.1 m/s
07:00
5.8 m/s
08:00
5.5 m/s
09:00
5.1 m/s
10:00
5 m/s
11:00
5.6 m/s
12:00
6.5 m/s
13:00
6.8 m/s
14:00
6.7 m/s
15:00
5.6 m/s
16:00
5.5 m/s
17:00
5.2 m/s
18:00
5.1 m/s
19:00
5.4 m/s
20:00
6 m/s
21:00
6.2 m/s
22:00
5.9 m/s
23:00
5.6 m/s
00:00 11:00 23:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
23.6 km
160
53.3%

Measurement time: 2026-03-20 01:00

Calculated from PM2.5/PM10

PM2.5
23.6 km
74 µg/m3
88.1%

Measurement time: 2026-03-20 01:00

source: Aqicn

PM10
31.3 km
36 µg/m3
25.7%

Measurement time: 2026-03-20 01:00

source: Aqicn

O3
31.3 km
40.6 µg/m3
25.4%

Measurement time: 2026-03-20 01:00

source: Aqicn

NO2
23.6 km
31.5 µg/m3
15.8%

Measurement time: 2026-03-20 01:00

source: Aqicn

SO2
23.6 km
3.3 µg/m3
0.9%

Measurement time: 2026-03-20 01:00

source: Aqicn

CO
23.6 km
0.0118 mg/m3
0.1%

Measurement time: 2026-03-20 01:00

source: Aqicn

Info


Country: Taiwan
Region: Taiwan
Latitude: 25.12825
Longitude: 121.7419


Solar Energy

Moderate
391 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Keelung

About Air Quality in Keelung

Air quality in Keelung is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Keelung

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Keelung?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Keelung

If you're planning outdoor activities in Keelung, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.