Worst air pollution Košice, today and tomorrow
Today (16 July): Air quality in Košice is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 31.3/100).
Tomorrow (17 July 2026): Air quality in Košice is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 37.1/100). 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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Košice's air quality faces significant challenges from the US Steel Košice steelworks, one of central Europe's largest integrated steel plants, generating elevated PM2.5, SO₂, and heavy metals alongside vehicle traffic on the R4 and surrounding road network. The Hornád river valley's partial topographic enclosure between the Slovak Ore Mountains and the Košice Basin creates concentration of industrial emissions under frequent winter temperature inversions, making Košice Slovakia's most industrially impacted major urban air quality environment.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
31.3/100
PM2.5 (fine particles):
Good
6.1/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
4.0/100
O3 (ozone):
Fair
31.3/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.6/100
PM1 (ultrafine particles):
Good
7.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
37.1/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
1.7/100
NO2 (nitrogen dioxide):
Good
5.0/100
O3 (ozone):
Fair
37.1/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.9/100
PM1 (ultrafine particles):
Good
8.5/100
Pollen forecast in Košice
View pollen forecastFrequently Asked Questions
Is air quality bad in Košice right now?
On 16 July 2026, overall air quality in Košice is fair. AQI is the main air quality indicator at 31.3/100. Pollution peaks around 2:00 PM (O3: 31.3/100).
Will air quality be worse tomorrow in Košice?
On 17 July 2026, air quality conditions in Košice will be similar to today, with AQI forecast at fair at 37.1/100. Pollution peaks around 3:00 PM (O3: 37.1/100).
When is air pollution at its worst in Košice?
In Košice, reduced air quality is most noticeable when oak and birch pollen peaks, and on days affected by the US Steel Košice steelworks, one of central Europe's largest integrated steel plants; conditions usually ease once the wet season or windier weather returns.
Are air quality levels in Košice 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