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Longpont-sur-Orge (Île-de-France) (FR)

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

Cloudy
9°C
Cloudy
Humidity
71.4%
Wind
4 m/s
Pressure
993.5 hPa
Direction
83°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
7° / 9°
Precip.
11.8mm
Max wind
6.2 m/s

Hourly Forecast

02.02
Now
Weather
02.02
17:00
Weather
02.02
18:00
Weather
02.02
19:00
Weather
0.2
02.02
20:00
Weather
0.6
02.02
21:00
Weather
0.5
02.02
22:00
Weather
0.3
02.02
23:00
Weather
0.1
03.02
00:00
Weather
0.2
03.02
01:00
Weather
0.1
03.02
02:00
Weather
03.02
03:00
Weather
0.1
03.02
04:00
Weather
0.3
03.02
05:00
Weather
0.3
03.02
06:00
Weather
1.3
03.02
07:00
Weather
2
03.02
08:00
Weather
1.7
03.02
09:00
Weather
1.1
5
03.02
10:00
Weather
1.1
6
03.02
11:00
Weather
0.9
6
03.02
12:00
Weather
0.7
6
03.02
13:00
Weather
0.2
6
03.02
14:00
Weather
0.1
6
03.02
15:00
Weather

Temperature

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

Precipitation

2mm
0mm
19:00
0.2mm
20:00
0.6mm
21:00
0.5mm
22:00
0.3mm
23:00
0.1mm
00:00
0.2mm
01:00
0.1mm
03:00
0.1mm
04:00
0.3mm
05:00
0.3mm
06:00
1.3mm
07:00
2mm
08:00
1.7mm
09:00
1.1mm
10:00
1.1mm
11:00
0.9mm
12:00
0.7mm
13:00
0.2mm
14:00
0.1mm
16:00 03:00 15:00

Wind

6.2m/s
0m/s
16:00
3.7 m/s
17:00
3.7 m/s
18:00
4 m/s
19:00
3.7 m/s
20:00
3.9 m/s
21:00
3.9 m/s
22:00
3.7 m/s
23:00
3.5 m/s
00:00
3.7 m/s
01:00
3.6 m/s
02:00
3.1 m/s
03:00
2.9 m/s
04:00
2.8 m/s
05:00
2.8 m/s
06:00
3.5 m/s
07:00
3 m/s
08:00
4.2 m/s
09:00
5.2 m/s
10:00
5.5 m/s
11:00
6.1 m/s
12:00
5.8 m/s
13:00
6.2 m/s
14:00
5.7 m/s
15:00
4.7 m/s
16:00 03:00 15:00

Radiation

0.07 uSv
3.3 km
8.8%

Measurement time: 2026-02-02 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
23.3 km
4
1.3%

Measurement time: 2026-02-02 15:23

Calculated from PM2.5/PM10

O3
23.3 km
79.14 µg/m3
49.5%

Measurement time: 2026-02-02 15:23

source: OpenWeatherMap

PM10
23.3 km
1.82 µg/m3
1.3%

Measurement time: 2026-02-02 15:23

source: OpenWeatherMap

PM2.5
23.3 km
1.1 µg/m3
1.3%

Measurement time: 2026-02-02 15:23

source: OpenWeatherMap

CO
23.3 km
0.139 mg/m3
1%

Measurement time: 2026-02-02 15:23

source: OpenWeatherMap

NO2
23.3 km
1.98 µg/m3
1%

Measurement time: 2026-02-02 15:23

source: OpenWeatherMap

SO2
23.3 km
0.31 µg/m3
0.1%

Measurement time: 2026-02-02 15:23

source: OpenWeatherMap

About Air Quality in Longpont-sur-Orge

Air quality in Longpont-sur-Orge 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 Longpont-sur-Orge

  • 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 Longpont-sur-Orge?

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 Longpont-sur-Orge

If you're planning outdoor activities in Longpont-sur-Orge, 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.