Air Quality in Ansan-si, South Korea

Windy
16.4°C · 79.7% humidity
16.4°
Feels 16.4°
76
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
42 stations

Nearby Monitoring Stations

AQI Forecast
54 3pm
54
54
76 6pm
70
65
74 9pm
72
70
69 12am
68
85
84 3am
84
84
83 6am
83
83
83 9am
66
66
54 12pm
54
54
AD 728×90

Air Quality Index Trend

48h · 115 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. Current PM2.5 concentration in Ansan-si is 1.6× the WHO 24-hour guideline of 15 µg/m³.

79.7%
Humidity
54.1 km/h
Wind SW
1006.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
76
23.89 µg/m³
PM10
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Ansan-si?

Temperature & Precipitation

PM2.5 Trend

48h · 115 stations
PM2.523.89 µg/m³ ×1.6 WHO
Moderate
PM1066.15 µg/m³
Moderate
UV INDEX1.4
Low
AD 300×250
Station readings (42 stations within 25 km)
23.89
Median
31.49
Average
22.6
Low
46.5
High
PM2.5 µg/m³ · Model: 20.3 · Bias: -3.6

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

05-30
23.2° 16.4°
3.0 mm
05-31
22.8° 18.9°
2.69 mm
06-01
25.3° 19.0°
0.13 mm
06-02
27.5° 20.2°
06-03
24.0° 17.0°
0.31 mm
06-04
21.6° 18.5°
0.75 mm
06-05
25.5° 17.9°
0.5 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Ansan-si?

99
Ansan (안산시)
0.8 km PM2.5: 34.9 µg/m³
78
Ansan (안산시)
0.8 km PM2.5: 24.9 µg/m³
63
Ansan (안산시)
0.8 km PM2.5: 17.8 µg/m³
18
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 4.3 µg/m³
34
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 8.2 µg/m³
44
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 10.6 µg/m³
67
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 19.7 µg/m³
37
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 8.9 µg/m³
63
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 17.8 µg/m³
84
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 27.8 µg/m³

What cities are near Ansan-si?

92 Anyang-si 98 Uiwang 97 Gunpo 94 Hwaseong-si 91 Siheungdong 114 Suwon 89 Gwangmyeong 90 Incheon 86 Bucheon-si 105 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 2026-05-30T09:09 UTC.