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Katsuura (Chiba) (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
5°C
Partly cloudy
Humidity
60.3%
Wind
10 m/s
Pressure
1017.8 hPa
Direction
350°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
5° / 9°
Precip.
0mm
Max wind
10.4 m/s

Hourly Forecast

31.01
Now
Weather
10
31.01
01:00
Weather
10
31.01
02:00
Weather
9
31.01
03:00
Weather
8
31.01
04:00
Weather
6
31.01
05:00
Weather
6
31.01
06:00
Weather
31.01
07:00
Weather
31.01
08:00
Weather
31.01
09:00
Weather
31.01
10:00
Weather
31.01
11:00
Weather
31.01
12:00
Weather
6
31.01
13:00
Weather
7
31.01
14:00
Weather
8
31.01
15:00
Weather
9
31.01
16:00
Weather
10
31.01
17:00
Weather
10
31.01
18:00
Weather
10
31.01
19:00
Weather
9
31.01
20:00
Weather
9
31.01
21:00
Weather
8
31.01
22:00
Weather
6
31.01
23:00
Weather

Temperature

9°C
5°C
00:00
5°C
01:00
6°C
02:00
7°C
03:00
7°C
04:00
7°C
05:00
8°C
06:00
8°C
07:00
8°C
08:00
8°C
09:00
9°C
10:00
9°C
11:00
8°C
12:00
9°C
13:00
8°C
14:00
8°C
15:00
7°C
16:00
7°C
17:00
7°C
18:00
7°C
19:00
6°C
20:00
6°C
21:00
6°C
22:00
6°C
23:00
7°C
00:00 11:00 23:00

Precipitation

0mm
0mm
00:00 11:00 23:00

Wind

10.4m/s
0m/s
00:00
10.4 m/s
01:00
9.7 m/s
02:00
8.5 m/s
03:00
7.6 m/s
04:00
6.4 m/s
05:00
5.5 m/s
06:00
4.6 m/s
07:00
3.4 m/s
08:00
2.4 m/s
09:00
2.1 m/s
10:00
3 m/s
11:00
4.2 m/s
12:00
6.1 m/s
13:00
7.4 m/s
14:00
8.1 m/s
15:00
9.4 m/s
16:00
10.3 m/s
17:00
10 m/s
18:00
9.8 m/s
19:00
9.2 m/s
20:00
8.8 m/s
21:00
7.5 m/s
22:00
6.2 m/s
23:00
4.8 m/s
00:00 11:00 23:00

Radiation

0.059 uSv
77.1 km
7.4%

Measurement time: 2026-01-30 22:00

source: remap_europe

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
69.8 km
78
26%

Measurement time: 2026-01-31 00:00

Calculated from PM2.5/PM10

PM2.5
69.8 km
25 µg/m3
29.8%

Measurement time: 2026-01-31 00:00

source: Aqicn

O3
84.2 km
24.1 µg/m3
15.1%

Measurement time: 2026-01-31 00:00

source: Aqicn

NO2
68.4 km
17.6 µg/m3
8.8%

Measurement time: 2026-01-31 00:00

source: Aqicn

PM10
69.8 km
8 µg/m3
5.7%

Measurement time: 2026-01-31 00:00

source: Aqicn

SO2
69.8 km
2.9 µg/m3
0.8%

Measurement time: 2026-01-31 00:00

source: Aqicn

CO
69.8 km
0.0045 mg/m3
0%

Measurement time: 2026-01-31 00:00

source: Aqicn

Info


Country: Japan
Region: Chiba
Latitude: 35.14621
Longitude: 140.31507


Solar Energy

Moderate
533.3 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Katsuura

About Air Quality in Katsuura

Air quality in Katsuura 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 Katsuura

  • 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 Katsuura?

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 Katsuura

If you're planning outdoor activities in Katsuura, 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.