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Kōriyama (Fukushima) (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

Partly cloudy
2°C
Partly cloudy
Humidity
56.4%
Wind
6 m/s
Pressure
1015.6 hPa
Direction
269°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-2° / 4°
Precip.
0.2mm
Max wind
5.9 m/s

Hourly Forecast

01.02
Now
Weather
6
01.02
05:00
Weather
6
01.02
06:00
Weather
0.2
5
01.02
07:00
Weather
01.02
08:00
Weather
-0°
01.02
09:00
Weather
-1°
01.02
10:00
Weather
-1°
01.02
11:00
Weather
-1°
01.02
12:00
Weather
-1°
01.02
13:00
Weather
-1°
01.02
14:00
Weather
-1°
01.02
15:00
Weather
-2°
01.02
16:00
Weather
-2°
01.02
17:00
Weather
-2°
01.02
18:00
Weather
-2°
01.02
19:00
Weather
-2°
01.02
20:00
Weather
-2°
01.02
21:00
Weather
-2°
01.02
22:00
Weather
-2°
01.02
23:00
Weather
02.02
00:00
Weather
02.02
01:00
Weather
02.02
02:00
Weather
02.02
03:00
Weather

Temperature

4°C
-2°C
04:00
2°C
05:00
2°C
06:00
2°C
07:00
1°C
08:00
-0°C
09:00
-1°C
10:00
-1°C
11:00
-1°C
12:00
-1°C
13:00
-1°C
14:00
-1°C
15:00
-2°C
16:00
-2°C
17:00
-2°C
18:00
-2°C
19:00
-2°C
20:00
-2°C
21:00
-2°C
22:00
-2°C
23:00
0°C
00:00
2°C
01:00
2°C
02:00
3°C
03:00
4°C
04:00 15:00 03:00

Precipitation

0.2mm
0mm
06:00
0.2mm
04:00 15:00 03:00

Wind

5.9m/s
0m/s
04:00
5.6 m/s
05:00
5.9 m/s
06:00
5.1 m/s
07:00
4.4 m/s
08:00
4 m/s
09:00
3.6 m/s
10:00
4.1 m/s
11:00
4 m/s
12:00
3.9 m/s
13:00
4.3 m/s
14:00
4.7 m/s
15:00
4.9 m/s
16:00
4.8 m/s
17:00
4.5 m/s
18:00
4.3 m/s
19:00
4 m/s
20:00
3.7 m/s
21:00
3.5 m/s
22:00
3.2 m/s
23:00
2.8 m/s
00:00
2.8 m/s
01:00
4.2 m/s
02:00
3.6 m/s
03:00
4.5 m/s
04:00 15:00 03:00

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
65.2 km
24
8%

Measurement time: 2026-02-01 04:17

Calculated from PM2.5/PM10

O3
65.2 km
65.12 µg/m3
40.7%

Measurement time: 2026-02-01 04:17

source: OpenWeatherMap

NO2
65.2 km
24.51 µg/m3
12.3%

Measurement time: 2026-02-01 04:17

source: OpenWeatherMap

PM2.5
65.2 km
5.79 µg/m3
6.9%

Measurement time: 2026-02-01 04:17

source: OpenWeatherMap

SO2
65.2 km
23.24 µg/m3
6.6%

Measurement time: 2026-02-01 04:17

source: OpenWeatherMap

PM10
65.2 km
8.89 µg/m3
6.4%

Measurement time: 2026-02-01 04:17

source: OpenWeatherMap

CO
65.2 km
0.2147 mg/m3
1.5%

Measurement time: 2026-02-01 04:17

source: OpenWeatherMap

Info


Country: Japan
Region: Fukushima
Latitude: 37.4
Longitude: 140.38333


Solar Energy

Low
215.2 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Kōriyama

About Air Quality in Kōriyama

Air quality in Kōriyama 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 Kōriyama

  • 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 Kōriyama?

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 Kōriyama

If you're planning outdoor activities in Kōriyama, 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.