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
Asia
South Korea
Chungcheongnam-do
Cheonan-si
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Cheonan-si
Chungcheongnam-do, South Korea
2026-01-02 03:00
AQI (US)
Moderate
Pollutants
PM2.5
μg/m³
19.2
PM10
μg/m³
29.8
O3
μg/m³
51.7
NO2
μg/m³
21.1
SO2
μg/m³
17.2
CO
μg/m³
675
Weather
℃
℃
℉
-5℃
46%
13 kph
2 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
PM2.5
PM10
O3
NO2
SO2
CO
Places included
Dongnam-gu
AQI 79
Seobuk-gu
AQI 61
Data Sources
http://www.airkorea.or.kr/
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
Cheonan-si
AQI 70
Asan-si
AQI 67
Pyeongtaek-si
AQI 60
Anseong
AQI 56
Yesan-gun
AQI 45
Jincheon-gun
AQI 45
Yeongi-gun
AQI 67
Osan-si
AQI 52
Cheongju-si
AQI 61
Gongju-si
AQI 41
Jeungpyeong-gun
AQI 58
Air Matters © 2026