Air Quality in Osan, South Korea

Windy
26.4°C · 48.3% humidity
26.4°
Feels 26.4°
74
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
31 stations

Nearby Monitoring Stations

AQI Forecast
54 11am
54
34
74 2pm
63
48
42 5pm
38
42
59 8pm
58
57
56 11pm
55
55
55 2am
55
54
54 5am
54
54
54 8am
54
54
AD 728×90

Air Quality Index Trend

48h · 105 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 1.5× the WHO 24-hour guideline of 15 µg/m³.

48.3%
Humidity
63.5 km/h
Wind WNW
1010.5 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
74
23.0 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Osan?

Temperature & Precipitation

PM2.5 Trend

48h · 105 stations
PM2.523.0 µg/m³ ×1.5 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (31 stations within 25 km)
23.0
Median
19.73
Average
11.5
Low
32.1
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -9.3

What is the 7-day forecast for Osan?

06-09
26.4° 21.0°
06-10
21.0° 15.9°
0.25 mm
06-11
29.9° 19.6°
06-12
27.1° 21.3°
06-13
29.2° 23.1°
06-14
27.5° 18.9°
3.94 mm
06-15
29.0° 20.2°
Both models agree Avg diff: 3.7°C

Where are air quality stations near Osan?

50
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 12.0 µg/m³
57
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 15.0 µg/m³
76
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 24.0 µg/m³
18
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 4.3 µg/m³
59
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 15.9 µg/m³
15
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 3.6 µg/m³
16
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 3.8 µg/m³
57
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 15.0 µg/m³
70
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 21.1 µg/m³
24
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 5.8 µg/m³

What cities are near Osan?

67 Suwon 67 Pyeongtaek 62 Hwaseong-si 59 Anseong 60 Uiwang 60 Gunpo 63 Seonghwan 58 Ansan-si 63 Anyang-si 54 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 2026-06-09T05:24 UTC.