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Sint-Pieters-Leeuw (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

Regen
5°C
Regen
Humidity
94.1%
Wind
4 m/s
Pressure
1003 hPa
Direction
187°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
3° / 9°
Precip.
8.8mm
Max wind
4.5 m/s

Hourly Forecast

13.03
Now
Weather
0.3
13.03
19:00
Weather
0.3
13.03
20:00
Weather
0.2
13.03
21:00
Weather
0.3
13.03
22:00
Weather
0.5
13.03
23:00
Weather
1.1
14.03
00:00
Weather
1
14.03
01:00
Weather
0.8
14.03
02:00
Weather
0.7
14.03
03:00
Weather
0.3
14.03
04:00
Weather
0.6
14.03
05:00
Weather
0.6
14.03
06:00
Weather
14.03
07:00
Weather
14.03
08:00
Weather
0.1
14.03
09:00
Weather
0.2
14.03
10:00
Weather
14.03
11:00
Weather
14.03
12:00
Weather
14.03
13:00
Weather
14.03
14:00
Weather
0.8
14.03
15:00
Weather
0.2
14.03
16:00
Weather
0.8
14.03
17:00
Weather

Temperature

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

Precipitation

1.1mm
0mm
18:00
0.3mm
19:00
0.3mm
20:00
0.2mm
21:00
0.3mm
22:00
0.5mm
23:00
1.1mm
00:00
1mm
01:00
0.8mm
02:00
0.7mm
03:00
0.3mm
04:00
0.6mm
05:00
0.6mm
08:00
0.1mm
09:00
0.2mm
14:00
0.8mm
15:00
0.2mm
16:00
0.8mm
18:00 05:00 17:00

Wind

4.5m/s
0m/s
18:00
3.8 m/s
19:00
3.6 m/s
20:00
3.3 m/s
21:00
3.2 m/s
22:00
2.9 m/s
23:00
3.1 m/s
00:00
3.1 m/s
01:00
3.1 m/s
02:00
3.4 m/s
03:00
3.4 m/s
04:00
3.2 m/s
05:00
3.8 m/s
06:00
3.8 m/s
07:00
3.7 m/s
08:00
4.4 m/s
09:00
4.4 m/s
10:00
4.4 m/s
11:00
4.4 m/s
12:00
4.3 m/s
13:00
4 m/s
14:00
4.5 m/s
15:00
3.8 m/s
16:00
3.4 m/s
17:00
2.3 m/s
18:00 05:00 17:00

Radiation

0.085 uSv
8 km
10.6%

Measurement time: 2026-03-13 14:00

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
49 km
57
19%

Measurement time: 2026-03-13 18:00

Calculated from PM2.5/PM10

O3
95.5 km
29.7 µg/m3
18.6%

Measurement time: 2026-03-13 18:00

source: Aqicn

PM2.5
49 km
15 µg/m3
17.9%

Measurement time: 2026-03-13 18:00

source: Aqicn

PM10
73.3 km
14 µg/m3
10%

Measurement time: 2026-03-13 18:00

source: Aqicn

NO2
49 km
11.9 µg/m3
6%

Measurement time: 2026-03-13 18:00

source: Aqicn

SO2
43.4 km
0.6 µg/m3
0.2%

Measurement time: 2026-03-13 18:00

source: Aqicn

CO
95.5 km
0.0001 mg/m3
0%

Measurement time: 2026-03-13 18:00

source: Aqicn

Info


Country: Belgium
Region: Flanders
Latitude: 50.77926
Longitude: 4.24355

About Air Quality in Sint-Pieters-Leeuw

Air quality in Sint-Pieters-Leeuw 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 Sint-Pieters-Leeuw

  • 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 Sint-Pieters-Leeuw?

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 Sint-Pieters-Leeuw

If you're planning outdoor activities in Sint-Pieters-Leeuw, 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.