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Ujiie (Tochigi) (JP)

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
12°C
Light rain
Humidity
80.7%
Wind
4 m/s
Pressure
1013.4 hPa
Direction
188°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
11° / 17°
Precip.
14.3mm
Max wind
6.2 m/s

Hourly Forecast

09.04
Now
Weather
12°
0.2
09.04
16:00
Weather
12°
0.7
09.04
17:00
Weather
11°
0.5
09.04
18:00
Weather
11°
1.4
09.04
19:00
Weather
11°
0.7
09.04
20:00
Weather
11°
0.9
09.04
21:00
Weather
12°
0.5
09.04
22:00
Weather
13°
0.3
6
09.04
23:00
Weather
13°
0.3
6
10.04
00:00
Weather
14°
0.4
5
10.04
01:00
Weather
15°
0.5
10.04
02:00
Weather
16°
0.3
6
10.04
03:00
Weather
17°
0.3
6
10.04
04:00
Weather
16°
0.2
5
10.04
05:00
Weather
16°
0.5
10.04
06:00
Weather
16°
1.6
10.04
07:00
Weather
16°
2.5
10.04
08:00
Weather
16°
2
10.04
09:00
Weather
15°
0.5
10.04
10:00
Weather
15°
10.04
11:00
Weather
14°
10.04
12:00
Weather
13°
10.04
13:00
Weather
13°
10.04
14:00
Weather
13°

Temperature

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

Precipitation

2.5mm
0mm
15:00
0.2mm
16:00
0.7mm
17:00
0.5mm
18:00
1.4mm
19:00
0.7mm
20:00
0.9mm
21:00
0.5mm
22:00
0.3mm
23:00
0.3mm
00:00
0.4mm
01:00
0.5mm
02:00
0.3mm
03:00
0.3mm
04:00
0.2mm
05:00
0.5mm
06:00
1.6mm
07:00
2.5mm
08:00
2mm
09:00
0.5mm
15:00 02:00 14:00

Wind

6.2m/s
0m/s
15:00
3.6 m/s
16:00
3.5 m/s
17:00
2.5 m/s
18:00
2 m/s
19:00
2.4 m/s
20:00
3.9 m/s
21:00
4.9 m/s
22:00
5.8 m/s
23:00
6.1 m/s
00:00
5.4 m/s
01:00
5 m/s
02:00
6.2 m/s
03:00
5.9 m/s
04:00
5.1 m/s
05:00
3.9 m/s
06:00
3.9 m/s
07:00
3.1 m/s
08:00
3.7 m/s
09:00
1.4 m/s
10:00
1.3 m/s
11:00
1.4 m/s
12:00
1 m/s
13:00
1.6 m/s
14:00
0.8 m/s
15:00 02:00 14:00

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
90.2 km
97
32.3%

Measurement time: 2026-04-09 16:00

Calculated from PM2.5/PM10

PM2.5
90.2 km
34 µg/m3
40.5%

Measurement time: 2026-04-09 16:00

source: Aqicn

O3
90.2 km
39.2 µg/m3
24.5%

Measurement time: 2026-04-09 16:00

source: Aqicn

PM10
90.2 km
14 µg/m3
10%

Measurement time: 2026-04-09 16:00

source: Aqicn

NO2
90.2 km
2.8 µg/m3
1.4%

Measurement time: 2026-04-09 16:00

source: Aqicn

SO2
90.2 km
1.5 µg/m3
0.4%

Measurement time: 2026-04-09 16:00

source: Aqicn

Info


Country: Japan
Region: Tochigi
Latitude: 36.68333
Longitude: 139.96667


Solar Energy

Night
0 W/m²
Solar Radiation
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About Air Quality in Ujiie

Air quality in Ujiie 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 Ujiie

  • 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 Ujiie?

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 Ujiie

If you're planning outdoor activities in Ujiie, 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.