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
Harford County
4, Marshall
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
4, Marshall
Harford County
2026-07-25 14:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
PM2.5
μg/m³
2.5
Pollen
4.3
Weather
℃
℃
℉
25℃
57%
3 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Pollen
PM2.5
Places included
Fallston
AQI 4
Jarrettsville
AQI 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
Jarrettsville
AQI 5
Fawn Grove
AQI 41
Bel Air North
AQI 4
Stewartstown
AQI 9
Fallston
AQI 4
Bel Air
AQI 4
Delta
AQI 41
New Freedom
AQI 9
Pleasant Hills
AQI 4
Shrewsbury
AQI 9
Cross Roads
AQI 9
Air Matters © 2026