Air Quality in Koesan, South Korea

Rain
20.8°C · 98.6% humidity
20.8°
Feels 20.8°
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
15 stations

Nearby Monitoring Stations

AQI Forecast
54 4am
54
54
53 7am
27
27
25 10am
25
27
27 1pm
27
27
27 4pm
27
27
34 7pm
54
34
27 10pm
34
34
34 1am
34
34
AD 728×90

Air Quality Index Trend

48h · 5 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.

98.6%
Humidity
32.9 km/h
Wind NNE
997.7 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
53
13.07 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Koesan?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.513.07 µg/m³ ✓ WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (15 stations within 25 km)
13.07
Median
11.97
Average
6.0
Low
17.8
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +0.4

What is the 7-day forecast for Koesan?

07-21
32.2° 21.1°
0.56 mm
07-22
25.2° 20.4°
19.94 mm
07-23
25.4° 16.4°
10.44 mm
07-24
31.1° 21.0°
7.94 mm
07-25
29.0° 21.7°
1.94 mm
07-26
33.3° 20.0°
5.19 mm
07-27
29.4° 21.9°
3.44 mm
Both models agree Avg diff: 3.1°C

Where are air quality stations near Koesan?

57
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 15.0 µg/m³
61
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 16.9 µg/m³
34
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 8.2 µg/m³
25
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 6.0 µg/m³
26
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 6.2 µg/m³
55
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 14.0 µg/m³
34
Goesan-eup, Chungbuk, South Korea (괴산읍 충북)
0.6 km PM2.5: 8.2 µg/m³
58
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 15.4 µg/m³
39
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 9.4 µg/m³
38
Cheongcheon-myeon, Chungbuk, South Korea (청천면 충북)
8.9 km PM2.5: 9.1 µg/m³

What cities are near Koesan?

56 Jungpyong 62 Chungju 47 Chinch'ŏn 55 Cheongju-si 35 Mungyeong 42 Sejong 36 Anseong 31 Sangju 33 Yeoju 37 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 2026-07-21T22:57 UTC.