Toggle navigation
Places
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
Europe
France
Île-de-France
Essonne
Les Ulis
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Les Ulis
Arrondissement de Palaiseau, Essonne
2026-09-23 15:00
AQI (US)
Good
Pollutants
|
Pollens
O3
μg/m³
100
PM2.5
μg/m³
7
PM10
μg/m³
18
Mugwort
5.8
Grasses
2.2
Ragweed
0.4
Alder
0
Birch
0
Olive Tree
0
Weather
℃
℃
℉
26℃
35%
17 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
Allergy Risk
O3
PM2.5
PM10
Mugwort
Grasses
Ragweed
Alder
Birch
Olive Tree
Places included
LES ULIS
AQI 44
Data Sources
https://www.eea.europa.eu
http://www.polleninfo.org
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Les Ulis
AQI 44
Bures-sur-Yvette
AQI 39
Gif-sur-Yvette
AQI 39
Igny
AQI 39
La Ville-du-Bois
AQI 39
Montlhéry
AQI 39
Vaugrigneuse
AQI 39
Massy
AQI 50
Villemoisson-sur-Orge
AQI 39
Châtenay-Malabry
AQI 50
Antony
AQI 50
Air Matters © 2026