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
Indiana
Alton
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Alton
Boone Township, Crawford County
2025-12-09 17:00
CAQI (Europe)
Low
Pollutants
SO2
μg/m³
95.7
PM2.5
μg/m³
15.6
PM10
μg/m³
22.6
O3
μg/m³
34.4
Weather
℃
℃
℉
5℃
63%
22 kph
2 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
SO2
PM2.5
PM10
O3
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
Alton
AQI 48
Leavenworth
AQI 48
New Amsterdam
AQI 48
Mauckport
AQI 21
English
AQI 48
Brandenburg
AQI 21
Milltown
AQI 48
Corydon
AQI 37
Marengo
AQI 48
Irvington
AQI 22
Ekron
AQI 21
Air Matters © 2025