Cheonan: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Pollution and air quality forecast for Cheonan. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Cheonan:

1. particulate matter (PM2.5) dust - 32 (Moderate)
2. particulate matter (PM10) suspended dust - 32 (Moderate)
3. ozone (O3) - 32 (Good)
4. nitrogen dioxide (NO2) - 62 (Moderate)
5. sulfur dioxide (SO2) - 47 (Good)
6. carbon monoxide (CO) - 179 (Good)

Real-time Air Quality Index (AQI) for Cheonan, Thursday, August 27, 2026: 2.

What is the current level of PM2.5 in Cheonan? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 32 (Moderate) For comparison, the highest level of PM2.5 in Cheonan in the last 7 days was: 31 (Thursday, August 27, 2026) and the lowest: 13 (Tuesday, August 25, 2026).

What is the level of PM10 today in Cheonan? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Cheonan is: 32 (Moderate)

How is the O3 level today in Cheonan? (ozone (O3))
32 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
62 (Moderate)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
47 (Good)

How high is the CO level? (carbon monoxide (CO))
179 (Good)

Current data Thursday, August 27, 2026 at 10:00 AM

Cheonan

Thursday, August 27, 2026 at 10:00 AM

🌦️ Weather · 16-day Forecast — South Korea

16-day weather forecast for South Korea: today around 32°C (cloudy), lows near 21°C. Daily temperature and conditions, updated every day. A moderate breeze (about 7 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — South Korea

The UV index in South Korea today is 7.4 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Cheonan — compare nearby locations.

• Hwaseong 18 µg/m³
• Suwon 27 µg/m³
• Daejeon 28 µg/m³
• Anyang 18 µg/m³
• Seongnam 20 µg/m³
• Incheon 12 µg/m³
• Seoul 12 µg/m³
• Busan 8 µg/m³

Frequently asked questions

Is the air safe to breathe in Cheonan today?

The current average PM2.5 across Cheonan is about 32 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in Cheonan?

Right now PM2.5 in Cheonan averages about 32 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Cheonan?

Over the past week, the highest daily PM2.5 in Cheonan was recorded on Thursday, August 27 (about 31 µg/m³).

What is the UV index in Cheonan today?

The UV index in Cheonan today is 7.4 (high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Cheonan?

A moderate breeze (about 7 km/h) is partially dispersing pollutants today.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.