Is time to run? ⚠️☢️☣️

Le Mesnil-Saint-Denis (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
7°C
Partly cloudy
Humidity
95.8%
Wind
3 m/s
Pressure
1017.3 hPa
Direction
148°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
7° / 19°
Precip.
0mm
Max wind
3.8 m/s

Hourly Forecast

25.02
Now
Weather
25.02
05:00
Weather
25.02
06:00
Weather
25.02
07:00
Weather
25.02
08:00
Weather
25.02
09:00
Weather
10°
25.02
10:00
Weather
12°
25.02
11:00
Weather
15°
25.02
12:00
Weather
17°
25.02
13:00
Weather
18°
25.02
14:00
Weather
19°
25.02
15:00
Weather
19°
25.02
16:00
Weather
18°
25.02
17:00
Weather
15°
25.02
18:00
Weather
13°
25.02
19:00
Weather
12°
25.02
20:00
Weather
12°
25.02
21:00
Weather
11°
25.02
22:00
Weather
11°
25.02
23:00
Weather
11°
26.02
00:00
Weather
10°
26.02
01:00
Weather
10°
26.02
02:00
Weather
26.02
03:00
Weather

Temperature

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

Precipitation

0mm
0mm
04:00 15:00 03:00

Wind

3.8m/s
0m/s
04:00
2.9 m/s
05:00
3 m/s
06:00
2.8 m/s
07:00
2.7 m/s
08:00
2.9 m/s
09:00
2.1 m/s
10:00
2 m/s
11:00
2.1 m/s
12:00
2.1 m/s
13:00
2.3 m/s
14:00
2.5 m/s
15:00
2.5 m/s
16:00
2.2 m/s
17:00
2.4 m/s
18:00
2.7 m/s
19:00
2.9 m/s
20:00
3.2 m/s
21:00
3.4 m/s
22:00
3.5 m/s
23:00
3.6 m/s
00:00
3.5 m/s
01:00
3.5 m/s
02:00
3.6 m/s
03:00
3.8 m/s
04:00 15:00 03:00

Radiation

0.058 uSv
7.4 km
7.2%

Measurement time: 2026-02-25 02:00

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
33 km
19
6.3%

Measurement time: 2026-02-25 03:35

Calculated from PM2.5/PM10

O3
33 km
51.11 µg/m3
31.9%

Measurement time: 2026-02-25 03:35

source: OpenWeatherMap

PM2.5
33 km
4.58 µg/m3
5.5%

Measurement time: 2026-02-25 03:35

source: OpenWeatherMap

PM10
33 km
5.6 µg/m3
4%

Measurement time: 2026-02-25 03:35

source: OpenWeatherMap

NO2
33 km
2.52 µg/m3
1.3%

Measurement time: 2026-02-25 03:35

source: OpenWeatherMap

CO
33 km
0.16884 mg/m3
1.2%

Measurement time: 2026-02-25 03:35

source: OpenWeatherMap

SO2
33 km
0.21 µg/m3
0.1%

Measurement time: 2026-02-25 03:35

source: OpenWeatherMap

Info


Country: France
Latitude: 48.74485
Longitude: 1.95594

Cities in the area:

La Verrière Maurepas Élancourt Les Essarts-le-Roi Saint-Quentin-en-Yvelines Trappes Montigny-le-Bretonneux Jouars-Pontchartrain Chevreuse Voisins-le-Bretonneux Magny-les-Hameaux Bois-d’Arcy Plaisir Les Clayes-sous-Bois Le Perray-en-Yvelines Guyancourt Villepreux Saint-Rémy-lès-Chevreuse Fontenay-le-Fleury Saint-Cyr-l’École Buc Versailles Gif-sur-Yvette Le Chesnay Jouy-en-Josas Viroflay Bures-sur-Yvette Les Ulis Orsay Vélizy-Villacoublay Chaville Ville-d’Avray Igny Sèvres Villebon-sur-Yvette Palaiseau Meudon Verrières-le-Buisson Châtenay-Malabry Le Plessis-Robinson Saulx-les-Chartreux Boulogne-Billancourt Clamart Massy Sceaux La Ville-du-Bois Issy-les-Moulineaux Antony Fontenay-aux-Roses Châtillon Vanves Longjumeau Bagneux Malakoff Chilly-Mazarin Bourg-la-Reine Fresnes Épinay-sur-Orge Montrouge L'Haÿ-les-Roses Arcueil Morangis Cachan Chevilly-Larue Rungis Gentilly Villemoisson-sur-Orge Savigny-sur-Orge Paray-Vieille-Poste Villejuif Morsang-sur-Orge Le Kremlin-Bicêtre Orly Juvisy-sur-Orge Athis-Mons Thiais Ivry-sur-Seine Villeneuve-le-Roi Viry-Châtillon Vitry-sur-Seine Vigneux-sur-Seine Choisy-le-Roi Draveil Charenton-le-Pont Ablon-sur-Seine Alfortville Saint-Maurice Maisons-Alfort Villeneuve-Saint-Georges Montgeron Crosne Valenton Créteil Bonneuil-sur-Marne Limeil-Brévannes Joinville-le-Pont Yerres Brunoy Saint-Maur-des-Fossés Nogent-sur-Marne Champigny-sur-Marne Boissy-Saint-Léger Épinay-sous-Sénart Sucy-en-Brie Boussy-Saint-Antoine Villecresnes Vernouillet Quincy-sous-Sénart Chennevières-sur-Marne Dreux Ormesson-sur-Marne Villiers-sur-Marne Le Plessis-Trévise Combs-la-Ville La Queue-en-Brie Pontault-Combault Lésigny Brie-Comte-Robert Émerainville Roissy-en-Brie Ozoir-la-Ferrière Gretz-Armainvilliers Tournan-en-Brie Fontenay-Trésigny

About Air Quality in Le Mesnil-Saint-Denis

Air quality in Le Mesnil-Saint-Denis 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 Le Mesnil-Saint-Denis

  • 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 Le Mesnil-Saint-Denis?

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 Le Mesnil-Saint-Denis

If you're planning outdoor activities in Le Mesnil-Saint-Denis, 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.