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Braine-l'Alleud (Wallonia) (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

Light rain
11°C
Light rain
Humidity
79.5%
Wind
6 m/s
Pressure
1021.5 hPa
Direction
248°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
10° / 11°
Precip.
16.8mm
Max wind
7 m/s

Hourly Forecast

21.02
Now
Weather
11°
0.1
6
21.02
17:00
Weather
11°
0.4
5
21.02
18:00
Weather
10°
0.2
5
21.02
19:00
Weather
11°
0.5
6
21.02
20:00
Weather
11°
0.8
6
21.02
21:00
Weather
11°
1.6
6
21.02
22:00
Weather
11°
2.4
6
21.02
23:00
Weather
11°
0.8
6
22.02
00:00
Weather
11°
0.1
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°
0.2
6
22.02
07:00
Weather
11°
0.5
6
22.02
08:00
Weather
10°
0.4
6
22.02
09:00
Weather
11°
0.9
7
22.02
10:00
Weather
11°
0.7
7
22.02
11:00
Weather
11°
1.3
7
22.02
12:00
Weather
11°
1.9
7
22.02
13:00
Weather
11°
2
7
22.02
14:00
Weather
11°
0.9
7
22.02
15:00
Weather
11°
1.1
7

Temperature

11°C
10°C
16:00
11°C
17:00
11°C
18:00
10°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
10°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

2.4mm
0mm
16:00
0.1mm
17:00
0.4mm
18:00
0.2mm
19:00
0.5mm
20:00
0.8mm
21:00
1.6mm
22:00
2.4mm
23:00
0.8mm
00:00
0.1mm
06:00
0.2mm
07:00
0.5mm
08:00
0.4mm
09:00
0.9mm
10:00
0.7mm
11:00
1.3mm
12:00
1.9mm
13:00
2mm
14:00
0.9mm
15:00
1.1mm
16:00 03:00 15:00

Wind

7m/s
0m/s
16:00
6.3 m/s
17:00
5.3 m/s
18:00
5.4 m/s
19:00
6 m/s
20:00
5.7 m/s
21:00
5.5 m/s
22:00
5.6 m/s
23:00
6 m/s
00:00
6.2 m/s
01:00
6.4 m/s
02:00
6.6 m/s
03:00
7 m/s
04:00
6.7 m/s
05:00
6.1 m/s
06:00
6.1 m/s
07:00
6.4 m/s
08:00
6.4 m/s
09:00
6.5 m/s
10:00
6.7 m/s
11:00
6.5 m/s
12:00
6.9 m/s
13:00
6.7 m/s
14:00
6.7 m/s
15:00
6.7 m/s
16:00 03:00 15:00

Radiation

0.077 uSv
1.6 km
9.6%

Measurement time: 2026-02-21 12:00

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
77.5 km
134
44.7%

Measurement time: 2026-02-21 16:00

Calculated from PM2.5/PM10

PM2.5
77.5 km
49 µg/m3
58.3%

Measurement time: 2026-02-21 16:00

source: Aqicn

O3
83.5 km
32.6 µg/m3
20.4%

Measurement time: 2026-02-21 16:00

source: Aqicn

PM10
58.2 km
19 µg/m3
13.6%

Measurement time: 2026-02-21 16:00

source: Aqicn

NO2
77.5 km
8.3 µg/m3
4.2%

Measurement time: 2026-02-21 16:00

source: Aqicn

SO2
30.8 km
1.1 µg/m3
0.3%

Measurement time: 2026-02-21 16:00

source: Aqicn

CO
85.6 km
0.0001 mg/m3
0%

Measurement time: 2026-02-21 16:00

source: Aqicn

Info


Country: Belgium
Region: Wallonia
Latitude: 50.68363
Longitude: 4.36784

About Air Quality in Braine-l'Alleud

Air quality in Braine-l'Alleud 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 Braine-l'Alleud

  • 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 Braine-l'Alleud?

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 Braine-l'Alleud

If you're planning outdoor activities in Braine-l'Alleud, 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.