Air Quality in Ansan-si, South Korea

Windy
26.5°C · 61.1% humidity
26.5°
Feels 26.5°
29
Good
Air quality is satisfactory. Enjoy outdoor activities.
44 stations

Nearby Monitoring Stations

AQI Forecast
83 7am
66
54
29 10am
27
27
27 1pm
27
34
34 4pm
34
34
34 7pm
54
54
54 10pm
54
54
54 1am
54
54
54 4am
54
34
AD 728×90

Air Quality Index Trend

48h · 63 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
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
29
6.99 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Ansan-si?

Temperature & Precipitation

PM2.5 Trend

48h · 63 stations
PM2.56.99 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (44 stations within 25 km)
6.99
Median
8.44
Average
3.4
Low
24.9
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +6.5

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

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
07-28
30.4° 25.3°
0.81 mm
Both models agree Avg diff: 2.4°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
34
Ansan (안산시)
0.8 km PM2.5: 8.2 µg/m³
50
Ansan (안산시)
0.8 km PM2.5: 12.0 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 48 Uiwang 45 Gunpo 38 Hwaseong-si 39 Siheungdong 23 Suwon 38 Gwangmyeong 40 Incheon 29 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 2026-07-22T01:08 UTC.