Worst air pollution Suwon, today and tomorrow
Today (16 July): Air quality in Suwon is poor. AQI and O3 are poor; PM2.5 and PM1 are fair; NO2 is medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 2:00 PM (O3: 61.3/100).
Tomorrow (17 July 2026): Air quality in Suwon is very poor. AQI worsens to very poor; O3 increases to very poor; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 99.7/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Suwon's air quality reflects the flat Gyeonggi plateau's southern Seoul metropolitan corridor position, with vehicle traffic on surrounding expressways and the Samsung semiconductor — Suwon being Samsung's global headquarters — and manufacturing corridor contributing local sources. Seasonal Chinese dust transport elevates PM10 during spring yellow dust episodes, while the regional Northeast Asian industrial background on westerly winds elevates background PM2.5 and Suwon generally maintains moderate to elevated South Korean metropolitan suburban readings throughout the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Poor
61.3/100
PM2.5 (fine particles):
Fair
26.6/100
PM10 (coarse particles):
Good
12.4/100
NO2 (nitrogen dioxide):
Medium
43.0/100
O3 (ozone):
Poor
61.3/100
SO2 (sulfur dioxide):
Good
15.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.9/100
PM1 (ultrafine particles):
Fair
29.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Very poor
99.7/100
PM2.5 (fine particles):
Fair
38.1/100
PM10 (coarse particles):
Good
12.1/100
NO2 (nitrogen dioxide):
Medium
50.1/100
O3 (ozone):
Very poor
99.7/100
SO2 (sulfur dioxide):
Good
19.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
17.8/100
PM1 (ultrafine particles):
Medium
41.2/100
Frequently Asked Questions
Is air quality bad in Suwon right now?
On 16 July 2026, overall air quality in Suwon is poor. AQI is the main air quality indicator at 61.3/100. Pollution peaks around 2:00 PM (O3: 61.3/100).
Will air quality be worse tomorrow in Suwon?
On 17 July 2026, air quality conditions in Suwon will be worse than today, with AQI forecast at very poor at 99.7/100. Pollution peaks around 3:00 PM (O3: 99.7/100).
When is air pollution at its worst in Suwon?
Pollution in Suwon typically rises when traffic on the surrounding roads, textile and manufacturing operations, as well as harbour and shipping traffic combine, especially once dry, windy weather picks up. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. This is most noticeable during spring and autumn wind events.
Are air quality levels in Suwon 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.
Check air quality in other popular cities:
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