Air Quality in Osan, South Korea

Windy
25.2°C · 68.1% humidity
25.2°
Feels 25.2°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
21 stations

Nearby Monitoring Stations

AQI Forecast
83 5am
83
83
28 8am
15
0
7 11am
13
17
20 2pm
22
30
51 5pm
52
53
53 8pm
53
53
54 11pm
34
34
54 2am
54
54
AD 728×90

Air Quality Index Trend

47h · 62 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.

68.1%
Humidity
59.1 km/h
Wind NE
998.5 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
28
6.71 µg/m³
PM10▲
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Osan?

Temperature & Precipitation

PM2.5 Trend

47h · 62 stations
PM2.56.71 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (21 stations within 25 km)
6.71
Median
6.94
Average
3.1
Low
12.0
High
PM2.5 µg/m³ · Model: 20.3 · Bias: +13.6

What is the 7-day forecast for Osan?

07-21
33.3° 24.8°
0.25 mm
07-22
30.8° 24.0°
2.38 mm
07-23
29.5° 23.3°
0.62 mm
07-24
30.8° 23.4°
0.69 mm
07-25
32.1° 25.6°
0.94 mm
07-26
35.8° 23.8°
0.25 mm
07-27
33.7° 24.9°
5.69 mm
Both models agree Avg diff: 2.2°C

Where are air quality stations near Osan?

21
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 5.0 µg/m³
61
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 16.9 µg/m³
226
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 175.7 µg/m³
20
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 4.8 µg/m³
34
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 8.2 µg/m³
34
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 8.2 µg/m³
21
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 5.0 µg/m³
5
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 1.2 µg/m³
60
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 16.4 µg/m³
29
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 7.0 µg/m³

What cities are near Osan?

27 Suwon 44 Pyeongtaek 20 Hwaseong-si 45 Anseong 37 Uiwang 39 Gunpo 31 Seonghwan 21 Ansan-si 37 Anyang-si 39 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 2026-07-21T23:26 UTC.