Air Quality in Ansan-si, South Korea

Windy
26.5°C · 61.1% humidity
26.5°
Feels 26.5°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
65 stations

Nearby Monitoring Stations

AQI Forecast
84 3am
84
84
37 6am
49
42
37 9am
15
18
21 12pm
22
24
32 3pm
32
33
33 6pm
33
54
54 9pm
54
54
54 12am
54
54
AD 728×90

Air Quality Index Trend

48h · 30 stn

Ansan-si'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.

61.1%
Humidity
50.8 km/h
Wind NE
998.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
37
8.92 µg/m³
PM10▲
60
73.05 µg/m³
050100150200300500

What is the weather forecast for Ansan-si?

Temperature & Precipitation

PM2.5 Trend

48h · 30 stations
PM2.58.92 µg/m³ ✓ WHO
Good
PM1073.05 µg/m³
Moderate
UV INDEX0.7
Low
AD 300×250
Station readings (65 stations within 25 km)
8.92
Median
8.74
Average
1.4
Low
22.1
High
PM2.5 µg/m³ · Model: 23.6 · Bias: +14.7

What is the 7-day forecast for Ansan-si?

07-21
30.3° 23.9°
4.0 mm
07-22
31.4° 25.0°
6.0 mm
07-23
29.0° 22.6°
0.5 mm
07-24
29.7° 24.6°
0.69 mm
07-25
30.5° 26.3°
0.31 mm
07-26
33.3° 24.7°
0.06 mm
07-27
30.4° 26.3°
4.0 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Ansan-si?

46
Ansan (안산시)
0.8 km PM2.5: 11.0 µg/m³
61
Ansan (안산시)
0.8 km PM2.5: 16.9 µg/m³
50
Ansan (안산시)
0.8 km PM2.5: 12.0 µg/m³
55
Ansan (안산시)
0.8 km PM2.5: 14.0 µg/m³
46
Ansan (안산시)
0.8 km PM2.5: 11.0 µg/m³
67
Ansan (안산시)
0.8 km PM2.5: 19.7 µg/m³
56
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 14.5 µg/m³
12
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 2.9 µg/m³
46
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 11.0 µg/m³
95
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 33.0 µg/m³

What cities are near Ansan-si?

40 Anyang-si 45 Uiwang 42 Gunpo 27 Hwaseong-si 26 Siheungdong 27 Suwon 38 Gwangmyeong 57 Incheon 40 Bucheon-si 30 Osan
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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 2026-07-21T21:49 UTC.