Worst air pollution Plzeň, today and tomorrow
Today (30 August): Air quality in Plzeň is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 30.6/100).
Tomorrow (31 August 2026): Air quality in Plzeň is moderate. AQI worsens to moderate; NO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 43.3/100). Airmine updates local air quality forecasts four times daily.
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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 - 30 August | Pollution peaks at 23:00
AQI:
Fair
30.6/100
PM2.5 (fine particles):
Good
6.9/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Fair
30.6/100
O3 (ozone):
Fair
23.3/100
SO2 (sulfur dioxide):
Good
3.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 06:00
AQI:
Moderate
43.3/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Moderate
43.3/100
O3 (ozone):
Fair
25.5/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
12.5/100
Pollen forecast in Plzeň
View pollen forecastFrequently Asked Questions
Is air quality bad in Plzeň right now?
On 30 August 2026, overall air quality in Plzeň is fair. AQI is the main air quality indicator at 30.6/100. Pollution peaks around 11:00 PM (NO2: 30.6/100).
Will air quality be worse tomorrow in Plzeň?
On 31 August 2026, air quality conditions in Plzeň will be worse than today, with AQI forecast at moderate at 43.3/100. Pollution peaks around 6:00 AM (NO2: 43.3/100).
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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 30 August 2026 at 20:26 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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