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Ishikari (Hokkaido) (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

Sleet
3°C
Sleet
Humidity
60.7%
Wind
8 m/s
Pressure
1007.2 hPa
Direction
143°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
0° / 3°
Precip.
9.4mm
Max wind
21.1 m/s

Hourly Forecast

20.03
Now
Weather
0.3
8
20.03
10:00
Weather
0.5
9
20.03
11:00
Weather
0.4
8
20.03
12:00
Weather
0.4
11
20.03
13:00
Weather
0.9
12
20.03
14:00
Weather
0.9
11
20.03
15:00
Weather
0.7
9
20.03
16:00
Weather
1.1
7
20.03
17:00
Weather
1.6
20.03
18:00
Weather
0.9
21
20.03
19:00
Weather
0.3
18
20.03
20:00
Weather
0.1
17
20.03
21:00
Weather
0.1
18
20.03
22:00
Weather
0.2
19
20.03
23:00
Weather
0.3
18
21.03
00:00
Weather
0.5
17
21.03
01:00
Weather
0.2
17
21.03
02:00
Weather
16
21.03
03:00
Weather
15
21.03
04:00
Weather
14
21.03
05:00
Weather
14
21.03
06:00
Weather
13
21.03
07:00
Weather
12
21.03
08:00
Weather
12

Temperature

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

Precipitation

1.6mm
0mm
09:00
0.3mm
10:00
0.5mm
11:00
0.4mm
12:00
0.4mm
13:00
0.9mm
14:00
0.9mm
15:00
0.7mm
16:00
1.1mm
17:00
1.6mm
18:00
0.9mm
19:00
0.3mm
20:00
0.1mm
21:00
0.1mm
22:00
0.2mm
23:00
0.3mm
00:00
0.5mm
01:00
0.2mm
09:00 20:00 08:00

Wind

21.1m/s
0m/s
09:00
7.9 m/s
10:00
9 m/s
11:00
8.3 m/s
12:00
10.5 m/s
13:00
11.8 m/s
14:00
10.7 m/s
15:00
9.3 m/s
16:00
6.5 m/s
17:00
4.9 m/s
18:00
21.1 m/s
19:00
18 m/s
20:00
17.3 m/s
21:00
17.7 m/s
22:00
18.9 m/s
23:00
18 m/s
00:00
17.3 m/s
01:00
16.7 m/s
02:00
16.3 m/s
03:00
15.3 m/s
04:00
14.4 m/s
05:00
13.5 m/s
06:00
12.7 m/s
07:00
12.3 m/s
08:00
11.7 m/s
09:00 20:00 08:00

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
19.7 km
126
42%

Measurement time: 2026-03-20 09:00

Calculated from PM2.5/PM10

PM2.5
19.7 km
46 µg/m3
54.8%

Measurement time: 2026-03-20 09:00

source: Aqicn

O3
19.7 km
36.1 µg/m3
22.6%

Measurement time: 2026-03-20 09:00

source: Aqicn

PM10
19.7 km
13 µg/m3
9.3%

Measurement time: 2026-03-20 09:00

source: Aqicn

NO2
19.7 km
6.5 µg/m3
3.3%

Measurement time: 2026-03-20 09:00

source: Aqicn

CO
19.7 km
0.0034 mg/m3
0%

Measurement time: 2026-03-20 09:00

source: Aqicn

Info


Country: Japan
Region: Hokkaido
Latitude: 43.23972
Longitude: 141.35389


Solar Energy

Night
0 W/m²
Solar Radiation
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About Air Quality in Ishikari

Air quality in Ishikari 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 Ishikari

  • 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 Ishikari?

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 Ishikari

If you're planning outdoor activities in Ishikari, 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.