Worst air pollution Pyeongtaek, today and tomorrow
Today (10 August): Air quality in Pyeongtaek is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 37.1/100).
Tomorrow (11 August 2026): Air quality in Pyeongtaek is medium. AQI improves to medium; NO2 decreases to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 57.8/100). 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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Pyeongtaek's air quality reflects the flat Gyeonggi-do western coastal plain position adjacent to the US Army Camp Humphreys military base and Pyeongtaek Port, with vehicle traffic on surrounding roads and the military aviation, port, and manufacturing corridor contributing elevated NOₓ. Yellow Sea breezes provide coastal ventilation, while seasonal Chinese dust transport elevates PM10 and the military aviation operations represent the most distinctive local emission source throughout the year.
Today - 10 August | Pollution peaks at 16:00
AQI:
Fair
37.1/100
PM2.5 (fine particles):
Good
6.9/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Fair
31.0/100
O3 (ozone):
Fair
37.1/100
SO2 (sulfur dioxide):
Good
6.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.2/100
PM1 (ultrafine particles):
Good
4.7/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 17:00
AQI:
Medium
57.8/100
PM2.5 (fine particles):
Good
8.5/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Medium
42.4/100
O3 (ozone):
Medium
57.8/100
SO2 (sulfur dioxide):
Good
8.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.5/100
PM1 (ultrafine particles):
Good
7.5/100
Frequently Asked Questions
Is air quality bad in Pyeongtaek right now?
On 10 August 2026, overall air quality in Pyeongtaek is fair. AQI is the main air quality indicator at 37.1/100. Pollution peaks around 4:00 PM (O3: 37.1/100).
Will air quality be worse tomorrow in Pyeongtaek?
On 11 August 2026, air quality conditions in Pyeongtaek will be better than today, with AQI forecast at medium at 57.8/100. Pollution peaks around 5:00 PM (O3: 57.8/100).
When is air pollution at its worst in Pyeongtaek?
Pyeongtaek usually sees its poorest air quality when traffic emissions, aircraft operations at the local air base, and manufacturing activity coincide with periods when dry spells bring strong winds. Dust carried on these winds adds substantially to particulate levels. Sea breezes typically keep conditions in check, except during still weather.
Are air quality levels in Pyeongtaek 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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