Toggle navigation
Places
AQI (China)
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
United States
Maryland
Howard County
Columbia
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Columbia
District 5, Howard County
2025-03-15 08:00
AQI (China)
Excellent
Pollutants
PM2.5
μg/m³
12
Weather
℃
℃
℉
6℃
93%
9 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
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
Cities Nearby
Columbia
AQI 18
Savage
AQI 18
North Laurel
AQI 18
Elkridge
AQI 22
Ellicott City
AQI 22
Jessup
AQI 18
Laurel
AQI 27
West Laurel
AQI 15
Burtonsville
AQI 15
Maryland City
AQI 18
Catonsville
AQI 22
Air Matters © 2025