Air Quality in Koesan, South Korea

Cloudy
18.7°C · 79.9% humidity
18.7°
Feels 18.7°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast
54 11pm
54
54
42 2am
45
48
62 5am
63
52
52 8am
53
26
26 11am
34
54
54 2pm
54
54
54 5pm
54
54
54 8pm
54
34
AD 728×90

Air Quality Index Trend

47h · 31 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.

79.9%
Humidity
20.4 km/h
Wind SE
1007.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
42
10.11 µg/m³
PM10▲
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Koesan?

Temperature & Precipitation

PM2.5 Trend

47h · 31 stations
PM2.510.11 µg/m³ ✓ WHO
Good
PM1066.15 µg/m³
Moderate
UV INDEX0.7
Low
AD 300×250
Station readings (9 stations within 25 km)
10.11
Median
10.81
Average
8.2
Low
14.0
High
PM2.5 µg/m³ · Model: 20.75 · Bias: +10.6

What is the 7-day forecast for Koesan?

06-09
27.3° 18.7°
0.75 mm
06-10
16.4° 12.1°
0.69 mm
06-11
29.2° 15.5°
0.31 mm
06-12
27.6° 17.0°
06-13
28.9° 15.8°
06-14
25.0° 15.9°
3.31 mm
06-15
28.8° 16.1°
Both models agree Avg diff: 2.8°C

Where are air quality stations near Koesan?

55
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 14.0 µg/m³
50
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 12.0 µg/m³
61
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 16.9 µg/m³
63
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 17.8 µg/m³
59
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 15.9 µg/m³
46
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 11.0 µg/m³
55
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 14.0 µg/m³
40
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 9.6 µg/m³
38
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 9.1 µg/m³
39
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 9.4 µg/m³

What cities are near Koesan?

42 Jungpyong 48 Chungju 42 Chinch'ŏn 52 Cheongju-si 50 Mungyeong 38 Sejong 44 Anseong 50 Sangju 40 Yeoju 40 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 2026-06-09T17:28 UTC.