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
North America
United States
Ohio
Knox County
Clay Township
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Clay Township
Knox County
2026-02-16 17:00
AQI (US)
Good
Pollutants
PM2.5
μg/m³
8.4
NO2
μg/m³
37.9
PM10
μg/m³
12.8
CO
μg/m³
248.3
Weather
℃
℃
℉
4℃
99%
15 kph
3 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
PM2.5
NO2
PM10
CO
Places included
Martinsburg
AQI 47
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
Martinsburg
AQI 47
Utica
AQI 47
Gambier
AQI 47
Saint Louisville
AQI 47
Mount Vernon
AQI 47
Danville
AQI 47
Nellie
AQI 47
Hanover
AQI 47
Gann
AQI 47
Frazeysburg
AQI 47
Newark
AQI 47
Air Matters © 2026