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Ōhara (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

Cloudy
14°C
Cloudy
Humidity
73.5%
Wind
17 m/s
Pressure
1002.9 hPa
Direction
225°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
2° / 14°
Precip.
0mm
Max wind
19.4 m/s

Hourly Forecast

10.01
Now
Weather
14°
17
10.01
22:00
Weather
14°
15
10.01
23:00
Weather
12°
15
11.01
00:00
Weather
12°
15
11.01
01:00
Weather
12°
15
11.01
02:00
Weather
12°
18
11.01
03:00
Weather
12°
19
11.01
04:00
Weather
11°
18
11.01
05:00
Weather
10°
18
11.01
06:00
Weather
18
11.01
07:00
Weather
18
11.01
08:00
Weather
18
11.01
09:00
Weather
17
11.01
10:00
Weather
16
11.01
11:00
Weather
14
11.01
12:00
Weather
13
11.01
13:00
Weather
12
11.01
14:00
Weather
12
11.01
15:00
Weather
12
11.01
16:00
Weather
12
11.01
17:00
Weather
11
11.01
18:00
Weather
8
11.01
19:00
Weather
8
11.01
20:00
Weather
8

Temperature

14°C
2°C
21:00
14°C
22:00
14°C
23:00
12°C
00:00
12°C
01:00
12°C
02:00
12°C
03:00
12°C
04:00
11°C
05:00
10°C
06:00
9°C
07:00
9°C
08:00
7°C
09:00
6°C
10:00
6°C
11:00
5°C
12:00
5°C
13:00
4°C
14:00
4°C
15:00
4°C
16:00
4°C
17:00
4°C
18:00
3°C
19:00
2°C
20:00
2°C
21:00 08:00 20:00

Precipitation

0mm
0mm
21:00 08:00 20:00

Wind

19.4m/s
0m/s
21:00
17.1 m/s
22:00
15 m/s
23:00
14.5 m/s
00:00
14.5 m/s
01:00
15.3 m/s
02:00
17.9 m/s
03:00
19.4 m/s
04:00
18.3 m/s
05:00
18.4 m/s
06:00
18 m/s
07:00
18.2 m/s
08:00
18.3 m/s
09:00
16.6 m/s
10:00
15.5 m/s
11:00
14 m/s
12:00
13.3 m/s
13:00
12.3 m/s
14:00
12.1 m/s
15:00
12.3 m/s
16:00
12 m/s
17:00
11.2 m/s
18:00
8.2 m/s
19:00
7.6 m/s
20:00
7.5 m/s
21:00 08:00 20:00

Radiation

16 uSv
80.7 km
2000%

source: safecast

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
68.6 km
107
35.7%

Calculated from PM2.5/PM10

PM2.5
68.6 km
38 µg/m3
45.2%

source: Aqicn

O3
81.7 km
35.2 µg/m3
22%

source: Aqicn

PM10
71.9 km
13 µg/m3
9.3%

source: Aqicn

NO2
68.6 km
17.6 µg/m3
8.8%

source: Aqicn

SO2
71.9 km
4.3 µg/m3
1.2%

source: Aqicn

CO
68.6 km
0.0023 mg/m3
0%

source: Aqicn

Info


Country: Japan
Region: Chiba
Latitude: 35.24761
Longitude: 140.39289


Solar Energy

Very low
85.6 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Ōhara

About Air Quality in Ōhara

Air quality in Ōhara 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 Ōhara

  • 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 Ōhara?

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 Ōhara

If you're planning outdoor activities in Ōhara, 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.