Air Quality in Koesan, South Korea

Cloudy
23.5°C · 87.0% humidity
23.5°
Feels 23.5°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
6 5am
6
6
13 8am
12
11
8 11am
7
7
7 2pm
6
6
6 5pm
6
5
5 8pm
5
6
8 11pm
8
8
8 2am
8
8
Station readings 45h ago
AQI 35
PM2.5 8.5 µg/m³ · 45h ago
AD 728×90

Air Quality Index Trend

43h · 9 stn

Koesan's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions.

87.0%
Humidity
21.4 km/h
Wind ESE
1006.2 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
13
3.1 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Koesan?

Temperature & Precipitation

PM2.5 Trend

43h · 9 stations
PM2.53.1 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (1 station within 25 km)
3.1
Median
3.1
Average
3.1
Low
3.1
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +3.2

What is the 7-day forecast for Koesan?

08-03
31.3° 23.3°
4.06 mm
08-04
29.3° 21.4°
4.0 mm
08-05
26.8° 17.2°
2.38 mm
08-06
32.1° 22.1°
0.13 mm
08-07
31.3° 20.6°
08-08
33.5° 20.8°
08-09
29.7° 22.1°
0.19 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near Koesan?

50
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 12.0 µg/m³
30
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 7.2 µg/m³
38
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 9.1 µg/m³
30
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 7.2 µg/m³
78
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 24.9 µg/m³
27
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 6.5 µg/m³
21
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 5.0 µg/m³
30
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 7.2 µg/m³
13
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 3.1 µg/m³
7
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 1.7 µg/m³

What cities are near Koesan?

18 Jungpyong 31 Chungju 52 Chinch'ŏn 44 Cheongju-si 25 Mungyeong 46 Sejong 35 Anseong 25 Sangju 55 Yeoju 59 Cheonan
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:58 UTC.