Toggle navigation
Places
CAQI (Europe)
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
North America
Canada
Québec
Chelsea
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Chelsea
Les Collines-de-l'Outaouais Regional County Municipality, Outaouais
2025-03-21 13:00
CAQI (Europe)
Very Low
5
Pollutants
PM2.5
μg/m³
2.8
Weather
℃
℃
℉
1℃
40%
18 kph
3 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
PM2.5
Data Sources
http://www.airnow.gov/
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
Allergy Risk
Allergy Risk
AQI
O3
PM10
NO2
PM2.5
Alder
Birch
Grasses
Ragweed
Mugwort
Olive Tree
8.9
6.4
9.1
3.6
7.9
9.2
8.0
8.0
9.0
9.4
9.3
6.9
9.0
10.0
10.0
10.8
6.5
9.7
7.5
9.8
10.0
3.5
8.0
9.0
9.5
6.9
10.0
3.0
9.5
10.0
9.7
10.9
6.8
8.6
5.5
10.0
3.3
9.0
9.4
12.0
7.9
8.8
9.1
9.7
8.7
7.3
9.0
3.8
6.0
10.8
12.0
8.4
8.5
9.2
5.4
10.2
8.8
7.4
9.3
8.0
8.1
6.4
10.9
9.9
8.4
6.0
10.8
7.9
9.2
10.0
9.9
10.2
4.5
10.1
10.0
2.6
8.7
9.0
3.1
10.0
7.9
9.5
11.5
10.8
10.0
9.0
8.6
6.6
9.8
8.4
10.0
7.0
9.1
6.0
10.0
9.1
8.3
6.1
+
−
Leaflet
| ©
OpenStreetMap
contributors
Cities Nearby
Chelsea
AQI 5
Cantley
AQI 6
Gatineau
AQI 38
Sainte-Cécile-de-Masham
AQI 39
Ottawa
AQI 37
Arnprior
AQI 15
Mississippi Mills
AQI 15
Clarence-Rockland
AQI 21
Thurso
AQI 21
Shawville
AQI 15
Carleton Place
AQI 15
Air Matters © 2025