Air Quality in Osan, South Korea

Drizzle
27.9°C · 78.7% humidity
27.9°
Feels 33.7°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
13 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
44 5am
24
24
58 8am
41
34
30 11am
26
21
20 2pm
18
17
17 5pm
16
16
16 8pm
15
24
24 11pm
24
17
17 2am
17
17
Station readings 45h ago
AQI 44
PM2.5 10.5 µg/m³ · 45h ago
AD 728×90

Air Quality Index Trend

46h · 90 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 1.0× the WHO 24-hour guideline of 15 µg/m³.

78.7%
Humidity
18.1 km/h
Wind ESE
1004.9 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.59 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Osan?

Temperature & Precipitation

PM2.5 Trend

46h · 90 stations
PM2.515.59 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (13 stations within 25 km)
15.59
Median
14.46
Average
8.2
Low
26.8
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -4.7

What is the 7-day forecast for Osan?

08-03
30.0° 25.8°
0.94 mm
08-04
32.0° 26.1°
1.75 mm
08-05
29.0° 22.6°
2.06 mm
08-06
31.7° 24.7°
0.75 mm
08-07
32.4° 24.7°
08-08
33.5° 24.3°
0.25 mm
08-09
31.4° 21.6°
1.5 mm
Both models agree Avg diff: 4.4°C

Where are air quality stations near Osan?

38
Osan-dong, Osan-si, Gyeonggi, South Korea (오산동 경기)
1.0 km PM2.5: 9.1 µg/m³
50
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 12.0 µg/m³
102
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 35.9 µg/m³
65
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 18.8 µg/m³
95
Sinjangdong(Osan), Gyeonggi, South Korea (금암로(신장동) 경기)
2.7 km PM2.5: 33.0 µg/m³
53
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 13.1 µg/m³
59
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 15.9 µg/m³
42
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 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
62
Dongtan-dong, Hwaseong-si, Gyeonggi, South Korea (동탄 경기)
5.0 km PM2.5: 17.3 µg/m³

What cities are near Osan?

54 Suwon 60 Pyeongtaek 60 Hwaseong-si 35 Anseong 54 Uiwang 54 Gunpo 63 Seonghwan 60 Ansan-si 63 Anyang-si 45 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 2026-08-07T23:56 UTC.