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Shiroi (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

Deszcz
19°C
Deszcz
Humidity
83.8%
Wind
10 m/s
Pressure
1005.8 hPa
Direction
197°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
16° / 23°
Precip.
8.8mm
Max wind
11.3 m/s

Hourly Forecast

10.04
Now
Weather
19°
0.7
10
10.04
04:00
Weather
18°
0.6
10
10.04
05:00
Weather
19°
0.4
11
10.04
06:00
Weather
18°
0.1
10
10.04
07:00
Weather
19°
0.5
11
10.04
08:00
Weather
19°
1.3
10
10.04
09:00
Weather
19°
2.1
10
10.04
10:00
Weather
19°
2.9
11
10.04
11:00
Weather
19°
0.2
10
10.04
12:00
Weather
19°
10
10.04
13:00
Weather
19°
9
10.04
14:00
Weather
19°
8
10.04
15:00
Weather
19°
8
10.04
16:00
Weather
18°
7
10.04
17:00
Weather
18°
7
10.04
18:00
Weather
17°
5
10.04
19:00
Weather
16°
10.04
20:00
Weather
16°
10.04
21:00
Weather
16°
10.04
22:00
Weather
17°
10.04
23:00
Weather
18°
11.04
00:00
Weather
20°
11.04
01:00
Weather
22°
11.04
02:00
Weather
23°

Temperature

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

Precipitation

2.9mm
0mm
03:00
0.7mm
04:00
0.6mm
05:00
0.4mm
06:00
0.1mm
07:00
0.5mm
08:00
1.3mm
09:00
2.1mm
10:00
2.9mm
11:00
0.2mm
03:00 14:00 02:00

Wind

11.3m/s
0m/s
03:00
9.5 m/s
04:00
9.9 m/s
05:00
10.5 m/s
06:00
9.7 m/s
07:00
10.5 m/s
08:00
9.9 m/s
09:00
10.1 m/s
10:00
11.3 m/s
11:00
9.7 m/s
12:00
9.7 m/s
13:00
8.9 m/s
14:00
8.2 m/s
15:00
7.5 m/s
16:00
7 m/s
17:00
6.5 m/s
18:00
5.3 m/s
19:00
3.3 m/s
20:00
1.7 m/s
21:00
1.5 m/s
22:00
2.7 m/s
23:00
2.8 m/s
00:00
2.8 m/s
01:00
2.6 m/s
02:00
1.9 m/s
03:00 14:00 02:00

Radiation

0.06 uSv
34.7 km
7.5%

Measurement time: 2026-04-10 01:00

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
45 km
151
50.3%

Measurement time: 2026-04-10 03:00

Calculated from PM2.5/PM10

PM2.5
45 km
57 µg/m3
67.9%

Measurement time: 2026-04-10 03:00

source: Aqicn

PM10
45 km
40 µg/m3
28.6%

Measurement time: 2026-04-10 03:00

source: Aqicn

O3
55.4 km
44.8 µg/m3
28%

Measurement time: 2026-04-10 03:00

source: Aqicn

NO2
45 km
8.4 µg/m3
4.2%

Measurement time: 2026-04-10 03:00

source: Aqicn

SO2
55.4 km
2.9 µg/m3
0.8%

Measurement time: 2026-04-10 03:00

source: Aqicn

CO
36.4 km
0.0023 mg/m3
0%

Measurement time: 2026-04-10 03:00

source: Aqicn

Info


Country: Japan
Region: Chiba
Latitude: 35.8
Longitude: 140.06667


Solar Energy

Moderate
363.8 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Shiroi

About Air Quality in Shiroi

Air quality in Shiroi 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 Shiroi

  • 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 Shiroi?

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 Shiroi

If you're planning outdoor activities in Shiroi, 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.