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
Asia
South Korea
Chungcheongnam-do
Hongseong-gun
Hongseong-eup
홍성읍
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
홍성읍
Hongseong-eup, Chungcheongnam-do
2026-06-17 01:00
CAQI (Europe)
Medium
Pollutants
PM2.5
μg/m³
40
PM10
μg/m³
59
O3
μg/m³
117.4
NO2
μg/m³
24.2
SO2
μg/m³
12
CO
μg/m³
850
Weather
℃
℃
℉
29℃
46%
2 kph
7 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
PM2.5
PM10
O3
NO2
SO2
CO
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
Hongseong-gun
AQI 60
Yesan-gun
AQI 64
Cheongyang-gun
AQI 52
Seosan-si
AQI 80
Boryeong-si
AQI 68
Dangjin-si
AQI 60
Taean-gun
AQI 75
Asan-si
AQI 51
Buyeo-gun
AQI 34
Gongju-si
AQI 49
Cheonan-si
AQI 51
Air Matters © 2026