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
Gyeonggi-do
Siheung-si
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Siheung-si
Gyeonggi-do, South Korea
2026-08-20 15:00
AQI (US)
Unhealthy for Sensitive Groups
Pollutants
PM2.5
μg/m³
53.3
PM10
μg/m³
84.3
NO2
μg/m³
52.8
O3
μg/m³
52
CO
μg/m³
891.7
SO2
μg/m³
9.7
Weather
℃
℃
℉
25℃
100%
4 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
PM2.5
PM10
NO2
O3
CO
SO2
Places included
Daeya-dong
AQI 117
Jeongwang 1(il)-dong
AQI 153
Jeongwangbon-dong
AQI 153
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
Siheung-si
AQI 145
Ansan-si
AQI 107
Gunpo-si
AQI 109
Incheon
AQI 128
Gwangmyeong-si
AQI 91
Anyang
AQI 91
Bucheon-si
AQI 117
Uiwang-si
AQI 91
Gwacheon-si
AQI 85
Hwaseong-si
AQI 80
Suwon-si
AQI 89
Air Matters © 2026