Worst air pollution Hosan, today and tomorrow
Today (16 July): Air quality in Hosan 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: 64.2/100).
Tomorrow (17 July 2026): Air quality in Hosan is poor. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 65.4/100). 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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Hosan in Chungnam reflects the flat South Korean Chungnam agricultural and light manufacturing position, with vehicle traffic on surrounding roads and agricultural operations contributing local sources. Yellow Sea breezes provide coastal ventilation, while seasonal Chinese dust transport elevates PM10 and the regional agricultural background maintains moderate South Korean Chungnam provincial corridor readings throughout most of the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Poor
64.2/100
PM2.5 (fine particles):
Fair
22.8/100
PM10 (coarse particles):
Good
10.2/100
NO2 (nitrogen dioxide):
Medium
46.2/100
O3 (ozone):
Poor
64.2/100
SO2 (sulfur dioxide):
Good
9.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.7/100
PM1 (ultrafine particles):
Fair
27.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Poor
65.4/100
PM2.5 (fine particles):
Fair
22.3/100
PM10 (coarse particles):
Good
7.3/100
NO2 (nitrogen dioxide):
Medium
51.3/100
O3 (ozone):
Poor
65.4/100
SO2 (sulfur dioxide):
Good
8.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.3/100
PM1 (ultrafine particles):
Fair
26.9/100
Frequently Asked Questions
Is air quality bad in Hosan right now?
On 16 July 2026, overall air quality in Hosan is poor. AQI is the main air quality indicator at 64.2/100. Pollution peaks around 2:00 PM (O3: 64.2/100).
Will air quality be worse tomorrow in Hosan?
On 17 July 2026, air quality conditions in Hosan will be similar to today, with AQI forecast at poor at 65.4/100. Pollution peaks around 3:00 PM (O3: 65.4/100).
When is air pollution at its worst in Hosan?
In Hosan, vehicle traffic, light manufacturing, as well as agricultural activity are the main local sources, with conditions worsening when dry spells bring strong winds. These wind events can carry dust in from the surrounding arid landscape. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Hosan 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