Toggle navigation
Places
AQI (China)
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
Gyeonggi-do
Osan-si
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Osan-si
Gyeonggi-do, South Korea
2026-08-21 14:00
AQI (China)
Excellent
Pollutants
PM10
μg/m³
21
NO2
μg/m³
24.6
PM2.5
μg/m³
6
O3
μg/m³
13.9
CO
μg/m³
287.5
SO2
μg/m³
5.1
Weather
℃
℃
℉
25℃
100%
0 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
PM10
NO2
PM2.5
O3
CO
SO2
Places included
Osan-dong
AQI 21
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
Osan-si
AQI 21
Suwon-si
AQI 15
Yongin-si
AQI 16
Pyeongtaek-si
AQI 20
Hwaseong-si
AQI 18
Uiwang-si
AQI 18
Anseong
AQI 11
Gunpo-si
AQI 21
Ansan-si
AQI 22
Anyang
AQI 20
Gwacheon-si
AQI 16
Air Matters © 2026