Worst air pollution Třinec, today and tomorrow
Today (16 July): Air quality in Třinec is fair. PM2.5 and O3 are fair; AQI, NO2, and PM1 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 1:00 AM (NO2: 46.2/100).
Tomorrow (17 July 2026): Air quality in Třinec is fair. O3 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 44.0/100). 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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Positioned in the Ostrava coal and steel basin, Třinec experiences air quality shaped chiefly by steel-industry emissions trapped by the mountain basin. The Moravian-Silesian Region terrain plays a role in how pollutants move through the area, with breezier conditions typically dispersing emissions faster than the still, settled spells that let them accumulate.
Today - 16 July | Pollution peaks at 01:00
AQI:
Medium
46.2/100
PM2.5 (fine particles):
Fair
38.2/100
PM10 (coarse particles):
Good
11.5/100
NO2 (nitrogen dioxide):
Medium
46.2/100
O3 (ozone):
Fair
39.5/100
SO2 (sulfur dioxide):
Good
11.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Medium
41.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Medium
44.0/100
PM2.5 (fine particles):
Fair
20.5/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Medium
41.8/100
O3 (ozone):
Medium
44.0/100
SO2 (sulfur dioxide):
Good
11.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.9/100
PM1 (ultrafine particles):
Fair
26.1/100
Pollen forecast in Třinec
View pollen forecastFrequently Asked Questions
Is air quality bad in Třinec right now?
On 16 July 2026, overall air quality in Třinec is fair. O3 is the main pollutant at 39.5/100. Pollution peaks around 1:00 AM (NO2: 46.2/100).
Will air quality be worse tomorrow in Třinec?
On 17 July 2026, air quality conditions in Třinec will be similar to today, with PM1 forecast at fair at 26.1/100. Pollution peaks around 2:00 PM (O3: 44.0/100).
When is air pollution at its worst in Třinec?
In Třinec, the combination of oak and beech pollen peaks and steel-industry emissions trapped by the mountain basin accounts for most of the noticeable dips in air quality; Moravian-Silesian Region's broader weather patterns tend to restore clearer conditions fairly quickly afterward.
Are air quality levels in Třinec 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