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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

Partly cloudy
10°C
Partly cloudy
Humidity
57.1%
Wind
3 m/s
Pressure
1017.4 hPa
Direction
235°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
6° / 12°
Precip.
0mm
Max wind
6 m/s

Hourly Forecast

15.03
Now
Weather
10°
15.03
18:00
Weather
15.03
19:00
Weather
15.03
20:00
Weather
15.03
21:00
Weather
15.03
22:00
Weather
5
15.03
23:00
Weather
6
16.03
00:00
Weather
6
16.03
01:00
Weather
5
16.03
02:00
Weather
16.03
03:00
Weather
16.03
04:00
Weather
16.03
05:00
Weather
16.03
06:00
Weather
16.03
07:00
Weather
16.03
08:00
Weather
16.03
09:00
Weather
16.03
10:00
Weather
10°
5
16.03
11:00
Weather
11°
16.03
12:00
Weather
11°
16.03
13:00
Weather
11°
16.03
14:00
Weather
11°
16.03
15:00
Weather
12°
16.03
16:00
Weather
11°

Temperature

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

Precipitation

0mm
0mm
17:00 04:00 16:00

Wind

6m/s
0m/s
17:00
3.3 m/s
18:00
3 m/s
19:00
3.7 m/s
20:00
4.2 m/s
21:00
4.8 m/s
22:00
5.3 m/s
23:00
5.7 m/s
00:00
6 m/s
01:00
5.3 m/s
02:00
4.4 m/s
03:00
3.7 m/s
04:00
3.2 m/s
05:00
3 m/s
06:00
3.2 m/s
07:00
3.6 m/s
08:00
3.3 m/s
09:00
3.7 m/s
10:00
5.1 m/s
11:00
5 m/s
12:00
4.6 m/s
13:00
4.7 m/s
14:00
4.2 m/s
15:00
4.2 m/s
16:00
3.9 m/s
17:00 04:00 16:00

Radiation

0.069 uSv
2.1 km
8.6%

Measurement time: 2026-03-15 15:00

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
31.6 km
11
3.7%

Measurement time: 2026-03-15 16:50

Calculated from PM2.5/PM10

O3
17.9 km
100.3 µg/m3
62.7%

Measurement time: 2026-03-15 16:44

source: OpenWeatherMap

PM2.5
31.6 km
2.69 µg/m3
3.2%

Measurement time: 2026-03-15 16:50

source: OpenWeatherMap

PM10
17.9 km
3.41 µg/m3
2.4%

Measurement time: 2026-03-15 16:44

source: OpenWeatherMap

CO
31.6 km
0.13472 mg/m3
1%

Measurement time: 2026-03-15 16:50

source: OpenWeatherMap

NO2
17.9 km
1.01 µg/m3
0.5%

Measurement time: 2026-03-15 16:44

source: OpenWeatherMap

SO2
17.9 km
0.73 µg/m3
0.2%

Measurement time: 2026-03-15 16:44

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.