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
United States
Maryland
Howard County
District 5
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
District 5
Howard County
2025-12-07 16:00
CAQI (Europe)
Very Low
Pollutants
PM2.5
μg/m³
12
Weather
℃
℃
℉
6℃
64%
8 kph
1 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
PM2.5
Places included
Columbia
AQI 20
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 20
Ashton-Sandy Spring
AQI 24
North Laurel
AQI 20
Brookeville
AQI 24
Burtonsville
AQI 22
Savage
AQI 20
Ellicott City
AQI 22
Olney
AQI 24
Cloverly
AQI 24
West Laurel
AQI 22
Elkridge
AQI 22
Air Matters © 2025