Is time to run? ⚠️☢️☣️

Yorii (Saitama) (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

Fair
8°C
Fair
Humidity
43.4%
Wind
2 m/s
Pressure
1000.5 hPa
Direction
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-1° / 9°
Precip.
0mm
Max wind
8 m/s

Hourly Forecast

13.01
Now
Weather
13.01
07:00
Weather
13.01
08:00
Weather
5
13.01
09:00
Weather
7
13.01
10:00
Weather
8
13.01
11:00
Weather
8
13.01
12:00
Weather
7
13.01
13:00
Weather
6
13.01
14:00
Weather
6
13.01
15:00
Weather
13.01
16:00
Weather
13.01
17:00
Weather
13.01
18:00
Weather
5
13.01
19:00
Weather
5
13.01
20:00
Weather
-0°
5
13.01
21:00
Weather
-1°
13.01
22:00
Weather
-1°
13.01
23:00
Weather
14.01
00:00
Weather
14.01
01:00
Weather
14.01
02:00
Weather
14.01
03:00
Weather
5
14.01
04:00
Weather
5
14.01
05:00
Weather
6

Temperature

9°C
-1°C
06:00
8°C
07:00
7°C
08:00
6°C
09:00
6°C
10:00
6°C
11:00
6°C
12:00
6°C
13:00
5°C
14:00
5°C
15:00
4°C
16:00
3°C
17:00
1°C
18:00
0°C
19:00
0°C
20:00
-0°C
21:00
-1°C
22:00
-1°C
23:00
1°C
00:00
3°C
01:00
5°C
02:00
6°C
03:00
8°C
04:00
9°C
05:00
9°C
06:00 17:00 05:00

Precipitation

0mm
0mm
06:00 17:00 05:00

Wind

8m/s
0m/s
06:00
1.9 m/s
07:00
2.7 m/s
08:00
5.2 m/s
09:00
6.8 m/s
10:00
7.7 m/s
11:00
8 m/s
12:00
7.2 m/s
13:00
6.3 m/s
14:00
5.7 m/s
15:00
5 m/s
16:00
4.4 m/s
17:00
4.7 m/s
18:00
5.1 m/s
19:00
5.4 m/s
20:00
5.3 m/s
21:00
5 m/s
22:00
4.8 m/s
23:00
4.4 m/s
00:00
3.6 m/s
01:00
4.5 m/s
02:00
5 m/s
03:00
5.1 m/s
04:00
5.4 m/s
05:00
6.3 m/s
06:00 17:00 05:00

Radiation

0.156 uSv
67.8 km
19.5%

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
49 km
117
39%

Calculated from PM2.5/PM10

PM2.5
49 km
42 µg/m3
50%

source: Aqicn

O3
84.8 km
37.6 µg/m3
23.5%

source: Aqicn

PM10
84.8 km
19 µg/m3
13.6%

source: Aqicn

NO2
81.4 km
17.6 µg/m3
8.8%

source: Aqicn

SO2
84.8 km
4.3 µg/m3
1.2%

source: Aqicn

CO
84.8 km
0.0034 mg/m3
0%

source: Aqicn

Info


Country: Japan
Region: Saitama
Latitude: 36.11567
Longitude: 139.19429


Solar Energy

Very low
83.9 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Yorii

About Air Quality in Yorii

Air quality in Yorii 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 Yorii

  • 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 Yorii?

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 Yorii

If you're planning outdoor activities in Yorii, 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.