Air Quality in Les Ulis, France

Cloudy
13.0°C · 80.8% humidity
13.0°
Feels 13.0°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
53 9pm
64
57
60 12am
56
54
52 3am
50
49
49 6am
48
48
48 9am
47
54
74 12pm
74
74
54 3pm
54
54
54 6pm
54
54
Station readings
53
64
57
59
CAMS model adj +20
34
34
27
27
27
27
27
27
27
27
27
27
27
27
34
54
54
54
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

48h · 2 stn

Les Ulis's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level. Current PM2.5 concentration in Les Ulis is 1.1× the WHO 24-hour guideline of 15 µg/m³.

80.8%
Humidity
10.0 km/h
Wind SW
1010.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.26 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Les Ulis?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.516.26 µg/m³ ×1.1 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (4 stations within 25 km)
16.26
Median
14.32
Average
6.7
Low
18.83
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -6.3
Both models agree Avg diff: 3.0°C

Where are air quality stations near Les Ulis?

59
rue de Gometz
1.9 km PM2.5: 15.7 µg/m³ PM10: 15.7 µg/m³
31
Rn20 Montlhery, Paris
8.6 km PM2.5: 7.4 µg/m³
53
Paris Stade Lenglen, Paris
18.1 km PM2.5: 13.1 µg/m³
7
Paris Stade Lenglen, Paris
18.1 km PM2.5: 1.7 µg/m³
2
Paris Stade Lenglen, Paris
18.1 km PM2.5: 0.5 µg/m³
63
Vitry-sur-seine, Paris
18.4 km PM2.5: 17.8 µg/m³
11
Vitry-sur-seine, Paris
18.4 km PM2.5: 2.6 µg/m³
5
Arcueil
18.7 km PM2.5: 1.2 µg/m³ PM10: 1.2 µg/m³
31
Place Victor Basch, Paris
19.9 km PM2.5: 7.4 µg/m³
38
Avenue Des Champs Elysees, Paris
23.3 km PM2.5: 9.1 µg/m³

What cities are near Les Ulis?

59 Orsay 60 Gif-sur-Yvette 56 Palaiseau 56 Longjumeau 54 Massy 53 Verrières-le-Buisson 48 Vélizy-Villacoublay 55 Chilly-Mazarin 57 Saint-Michel-sur-Orge 57 Sainte-Geneviève-des-Bois
Get AQI alerts for Les Ulis

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T22:37 UTC.