Air Quality in Cheonan, South Korea

Drizzle
21.2°C · 92.6% humidity
21.2°
Feels 21.2°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
22 stations

Nearby Monitoring Stations

AQI Forecast
66 4am
66
66
37 7am
33
12
14 10am
19
22
23 1pm
24
25
26 4pm
26
26
33 7pm
34
34
27 10pm
27
27
34 1am
34
34
AD 728×90

Air Quality Index Trend

48h · 22 stn

Cheonan'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.

92.6%
Humidity
42.5 km/h
Wind NNE
998.0 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
37
8.94 µg/m³
PM10▲
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Cheonan?

Temperature & Precipitation

PM2.5 Trend

48h · 22 stations
PM2.58.94 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (22 stations within 25 km)
8.94
Median
7.9
Average
4.1
Low
14.0
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +10.3

What is the 7-day forecast for Cheonan?

07-21
32.3° 21.3°
0.25 mm
07-22
26.2° 21.2°
3.13 mm
07-23
26.5° 18.5°
3.5 mm
07-24
31.4° 22.1°
2.0 mm
07-25
31.2° 22.2°
2.0 mm
07-26
33.4° 20.4°
1.88 mm
07-27
30.1° 22.5°
2.63 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near Cheonan?

17
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 4.1 µg/m³
5
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 1.2 µg/m³
34
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 8.2 µg/m³
55
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 14.0 µg/m³
97
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 34.0 µg/m³
35
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 8.4 µg/m³
41
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 9.8 µg/m³
50
Seonghwang-dong, Cheonan-si, Chungnam, South Korea (성황동 충남)
0.9 km PM2.5: 12.0 µg/m³
61
Cheonan (천안시)
3.5 km PM2.5: 16.9 µg/m³
46
Cheonan (천안시)
3.5 km PM2.5: 11.0 µg/m³

What cities are near Cheonan?

32 Seonghwan 27 Asan 38 Pyeongtaek 36 Anseong 47 Chinch'ŏn 42 Sejong 66 Yesan 55 Cheongju-si 56 Jungpyong 45 Gongju
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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 2026-07-21T22:58 UTC.