Worst air pollution Plzeň, today and tomorrow
Today (16 July): Air quality in Plzeň is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 45.4/100).
Tomorrow (17 July 2026): Air quality in Plzeň is fair. NO2 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 AM (NO2: 45.4/100). 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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Plzeň's air quality reflects its position in the Berounka river valley in western Bohemia, with vehicle traffic on the D5 motorway and the Škoda Works' engineering and manufacturing operations contributing elevated industrial and vehicle emissions. The surrounding Bohemian Forest creates topographic variation, while winter residential wood and coal burning adds seasonal PM2.5 and the Berounka valley's partial enclosure can concentrate emissions under calm anticyclonic conditions in this major Czech industrial and brewing city.
Today - 16 July | Pollution peaks at 18:00
AQI:
Medium
45.4/100
PM2.5 (fine particles):
Good
14.2/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Fair
33.0/100
O3 (ozone):
Medium
45.4/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
17.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 05:00
AQI:
Medium
45.4/100
PM2.5 (fine particles):
Good
18.3/100
PM10 (coarse particles):
Good
6.0/100
NO2 (nitrogen dioxide):
Medium
45.4/100
O3 (ozone):
Medium
45.1/100
SO2 (sulfur dioxide):
Good
3.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Fair
22.6/100
Pollen forecast in Plzeň
View pollen forecastFrequently Asked Questions
Is air quality bad in Plzeň right now?
On 16 July 2026, overall air quality in Plzeň is fair. NO2 is the main pollutant at 33.0/100. Pollution peaks around 6:00 PM (O3: 45.4/100).
Will air quality be worse tomorrow in Plzeň?
On 17 July 2026, air quality conditions in Plzeň will be similar to today, with PM1 forecast at fair at 22.6/100. Pollution peaks around 5:00 AM (NO2: 45.4/100).
When is air pollution at its worst in Plzeň?
You're most likely to notice worse air in Plzeň when local combined tree and grass pollen peaks, or due to vehicle traffic on the D5 motorway and the Škoda Works' engineering and manufacturing operations; the picture usually improves again once the season turns.
Are air quality levels in Plzeň 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.
Want to see air quality forecasts for other cities in Czechia?
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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