Worst air pollution Sa-ch’on, today and tomorrow
Today (16 July): Air quality in Sa-ch’on is poor. AQI and O3 are poor; NO2 is medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 77.2/100).
Tomorrow (17 July 2026): Air quality in Sa-ch’on is poor. PM2.5 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 74.6/100). 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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Sa-ch'on's air quality reflects the South Korean southeastern Gyeongnam South Sea coastal position adjacent to Sacheon Airport and the Korea Aerospace Industries facilities, with the military and civilian aviation operations and vehicle traffic on surrounding roads generating elevated NOₓ alongside the surrounding manufacturing corridor. Korea Strait maritime breezes provide coastal ventilation, while the aerospace manufacturing represents the most distinctive local emission source and Sacheon generally maintains moderate South Korean southeastern coastal industrial readings throughout the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Poor
77.2/100
PM2.5 (fine particles):
Good
16.4/100
PM10 (coarse particles):
Good
9.8/100
NO2 (nitrogen dioxide):
Medium
44.9/100
O3 (ozone):
Poor
77.2/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.6/100
PM1 (ultrafine particles):
Good
18.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Poor
74.6/100
PM2.5 (fine particles):
Fair
22.1/100
PM10 (coarse particles):
Good
7.8/100
NO2 (nitrogen dioxide):
Medium
45.4/100
O3 (ozone):
Poor
74.6/100
SO2 (sulfur dioxide):
Good
8.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.9/100
PM1 (ultrafine particles):
Fair
25.4/100
Frequently Asked Questions
Is air quality bad in Sa-ch’on right now?
On 16 July 2026, overall air quality in Sa-ch’on is poor. AQI is the main air quality indicator at 77.2/100. Pollution peaks around 2:00 PM (O3: 77.2/100).
Will air quality be worse tomorrow in Sa-ch’on?
On 17 July 2026, air quality conditions in Sa-ch’on will be similar to today, with AQI forecast at poor at 74.6/100. Pollution peaks around 11:00 AM (O3: 74.6/100).
When is air pollution at its worst in Sa-ch’on?
The biggest local contributors to pollution in Sa-ch’on are traffic on the surrounding roads, military aviation activity, together with textile and manufacturing operations, particularly once dry spells bring strong winds. Dust carried on these winds adds substantially to particulate levels. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Sa-ch’on 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app