Worst air pollution Kunsan, today and tomorrow
Today (10 August): Air quality in Kunsan is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 PM (NO2: 44.3/100).
Tomorrow (11 August 2026): Air quality in Kunsan is poor. AQI worsens to poor; O3 increases to poor; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 63.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Kunsan's air quality reflects the flat Jeollabuk-do Yellow Sea coastal position at the Mangyeong River delta, with vehicle traffic on surrounding roads and the Kunsan Industrial Estate's chemicals, paper, and manufacturing corridor contributing elevated industrial emissions. Yellow Sea breezes provide coastal ventilation, while seasonal Chinese dust transport elevates PM10 and the industrial estate's manufacturing character maintains moderate to elevated South Korean western coastal industrial readings throughout most of the year.
Today - 10 August | Pollution peaks at 20:00
AQI:
Medium
44.3/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Medium
44.3/100
O3 (ozone):
Fair
34.4/100
SO2 (sulfur dioxide):
Good
9.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.6/100
PM1 (ultrafine particles):
Good
6.2/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 16:00
AQI:
Poor
63.1/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Medium
57.7/100
O3 (ozone):
Poor
63.1/100
SO2 (sulfur dioxide):
Good
9.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.3/100
PM1 (ultrafine particles):
Good
8.1/100
Frequently Asked Questions
Is air quality bad in Kunsan right now?
On 10 August 2026, overall air quality in Kunsan is fair. O3 is the main pollutant at 34.4/100. Pollution peaks around 8:00 PM (NO2: 44.3/100).
Will air quality be worse tomorrow in Kunsan?
On 11 August 2026, air quality conditions in Kunsan will be worse than today, with AQI forecast at poor at 63.1/100. Pollution peaks around 4:00 PM (O3: 63.1/100).
When is air pollution at its worst in Kunsan?
In Kunsan, traffic emissions, petrochemical and refining operations, as well as textile and manufacturing operations are the main local sources, with conditions worsening when dry, windy weather picks up. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Kunsan based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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