Air Quality in Ansan-si, South Korea

Windy
19.0°C · 43.8% humidity
19.0°
Feels 19.0°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
45 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

45h · 97 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 1.0× the WHO 24-hour guideline of 15 µg/m³.

43.8%
Humidity
53.0 km/h
Wind W
1016.6 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.41 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Ansan-si?

Temperature & Precipitation

PM2.5 Trend

45h · 97 stations
PM2.515.41 µg/m³ ✓ WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (45 stations within 25 km)
15.41
Median
15.06
Average
2.2
Low
28.3
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -8.9

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

10-21
20.6° 17.0°
1.25 mm
10-22
22.4° 13.3°
0.5 mm
10-23
20.0° 9.2°
10-24
15.4° 14.1°
11.69 mm
10-25
19.5° 10.6°
0.13 mm
10-26
18.6° 11.2°
10-27
18.5° 14.8°
Both models agree Avg diff: 4.9°C

Where are air quality stations near Ansan-si?

57
Ansan (안산시)
0.8 km PM2.5: 15.0 µg/m³
50
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 12.0 µg/m³
53
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 13.1 µg/m³
55
Jungangro1, Gyeonggi, South Korea (중앙대로(고잔동) 경기)
0.9 km PM2.5: 14.0 µg/m³
42
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 10.1 µg/m³
53
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 13.1 µg/m³
65
Wongok, Ansan-si, Gyeonggi, South Korea (원곡동 경기)
2.0 km PM2.5: 18.8 µg/m³
38
Hosu-dong, Ansan-si, Gyeonggi, South Korea (호수동 경기)
2.3 km PM2.5: 9.1 µg/m³
42
Bugok-dong, Ansan-si, Gyeonggi, South Korea (부곡동1 경기)
3.6 km PM2.5: 10.1 µg/m³
50
Bugok-dong, Ansan-si, Gyeonggi, South Korea (부곡동1 경기)
3.6 km PM2.5: 12.0 µg/m³

What cities are near Ansan-si?

62 Anyang-si 58 Uiwang 58 Gunpo 56 Hwaseong-si 67 Siheungdong 63 Suwon 68 Gwangmyeong 55 Incheon 54 Bucheon-si 63 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 2026-10-21T03:08 UTC.