Air Quality in Osan, South Korea

Windy
19.4°C · 39.2% humidity
19.4°
Feels 19.4°
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
19 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

45h · 86 stn

Osan'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. Current PM2.5 concentration in Osan is 1.2× the WHO 24-hour guideline of 15 µg/m³.

39.2%
Humidity
50.1 km/h
Wind WNW
1016.5 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
63
17.68 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Osan?

Temperature & Precipitation

PM2.5 Trend

45h · 86 stations
PM2.517.68 µg/m³ ×1.2 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (19 stations within 25 km)
17.68
Median
15.21
Average
2.2
Low
24.0
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -9.5

What is the 7-day forecast for Osan?

10-21
19.8° 15.4°
0.25 mm
10-22
23.2° 13.4°
0.88 mm
10-23
20.8° 9.3°
10-24
14.8° 13.7°
15.0 mm
10-25
20.5° 11.1°
0.31 mm
10-26
18.7° 10.1°
0.13 mm
10-27
18.9° 14.2°
Both models agree Avg diff: 4.7°C

Where are air quality stations near Osan?

61
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 16.9 µg/m³
63
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 17.8 µg/m³
50
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 12.0 µg/m³
61
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 16.9 µg/m³
42
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 10.1 µg/m³
61
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 16.9 µg/m³
41
Cheonggye-dong, Gyeonggi, South Korea (청계동 경기)
6.6 km PM2.5: 9.8 µg/m³
46
Cheonggye-dong, Gyeonggi, South Korea (청계동 경기)
6.6 km PM2.5: 11.0 µg/m³
50
Cheonggye-dong, Gyeonggi, South Korea (청계동 경기)
6.6 km PM2.5: 12.0 µg/m³
30
Songbuk-dong, Gyeonggi, South Korea (송북동 경기)
7.9 km PM2.5: 7.2 µg/m³

What cities are near Osan?

63 Suwon 56 Pyeongtaek 56 Hwaseong-si 46 Anseong 58 Uiwang 58 Gunpo 57 Seonghwan 58 Ansan-si 62 Anyang-si 70 Seongnam-si
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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 2026-10-21T03:08 UTC.