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Overijse (Flanders) (BE)

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

Pochmurno
11°C
Pochmurno
Humidity
78%
Wind
6 m/s
Pressure
1021.2 hPa
Direction
246°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
11° / 11°
Precip.
16.1mm
Max wind
6.8 m/s

Hourly Forecast

21.02
Now
Weather
11°
6
21.02
17:00
Weather
11°
0.2
5
21.02
18:00
Weather
11°
0.2
5
21.02
19:00
Weather
11°
0.2
6
21.02
20:00
Weather
11°
0.2
6
21.02
21:00
Weather
11°
1.1
6
21.02
22:00
Weather
11°
1.8
6
21.02
23:00
Weather
11°
0.9
6
22.02
00:00
Weather
11°
0.2
6
22.02
01:00
Weather
11°
6
22.02
02:00
Weather
11°
7
22.02
03:00
Weather
11°
7
22.02
04:00
Weather
11°
7
22.02
05:00
Weather
11°
6
22.02
06:00
Weather
11°
0.3
6
22.02
07:00
Weather
11°
0.7
6
22.02
08:00
Weather
11°
0.3
6
22.02
09:00
Weather
11°
0.7
7
22.02
10:00
Weather
11°
0.8
7
22.02
11:00
Weather
11°
1.4
7
22.02
12:00
Weather
11°
1.9
7
22.02
13:00
Weather
11°
1.7
7
22.02
14:00
Weather
11°
1.6
7
22.02
15:00
Weather
11°
1.9
6

Temperature

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

Precipitation

1.9mm
0mm
17:00
0.2mm
18:00
0.2mm
19:00
0.2mm
20:00
0.2mm
21:00
1.1mm
22:00
1.8mm
23:00
0.9mm
00:00
0.2mm
06:00
0.3mm
07:00
0.7mm
08:00
0.3mm
09:00
0.7mm
10:00
0.8mm
11:00
1.4mm
12:00
1.9mm
13:00
1.7mm
14:00
1.6mm
15:00
1.9mm
16:00 03:00 15:00

Wind

6.8m/s
0m/s
16:00
6.2 m/s
17:00
5.3 m/s
18:00
5.3 m/s
19:00
5.8 m/s
20:00
5.6 m/s
21:00
5.7 m/s
22:00
5.9 m/s
23:00
5.9 m/s
00:00
6 m/s
01:00
6.4 m/s
02:00
6.5 m/s
03:00
6.6 m/s
04:00
6.7 m/s
05:00
6.1 m/s
06:00
5.8 m/s
07:00
6.1 m/s
08:00
6.3 m/s
09:00
6.6 m/s
10:00
6.6 m/s
11:00
6.6 m/s
12:00
6.8 m/s
13:00
6.5 m/s
14:00
6.6 m/s
15:00
6.3 m/s
16:00 03:00 15:00

Radiation

0.121 uSv
8.5 km
15.1%

Measurement time: 2026-02-21 15:41

source: radioactiveAtHome

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
62.4 km
134
44.7%

Measurement time: 2026-02-21 16:00

Calculated from PM2.5/PM10

PM2.5
62.4 km
49 µg/m3
58.3%

Measurement time: 2026-02-21 16:00

source: Aqicn

O3
82.3 km
82.09 µg/m3
51.3%

Measurement time: 2026-02-21 14:19

source: OpenWeatherMap

PM10
48.6 km
19 µg/m3
13.6%

Measurement time: 2026-02-21 16:00

source: Aqicn

NO2
62.4 km
8.3 µg/m3
4.2%

Measurement time: 2026-02-21 16:00

source: Aqicn

CO
82.3 km
0.14729 mg/m3
1.1%

Measurement time: 2026-02-21 14:19

source: OpenWeatherMap

SO2
82.3 km
1.25 µg/m3
0.4%

Measurement time: 2026-02-21 14:19

source: OpenWeatherMap

Info


Country: Belgium
Region: Flanders
Latitude: 50.77436
Longitude: 4.53461


Solar Energy

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About Air Quality in Overijse

Air quality in Overijse 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 Overijse

  • 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 Overijse?

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 Overijse

If you're planning outdoor activities in Overijse, 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.