Worst air pollution Valjevo, today and tomorrow
Today (9 August): Air quality in Valjevo is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 44.1/100).
Tomorrow (10 August 2026): Air quality in Valjevo is fair. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 53.4/100). Airmine updates local air quality forecasts four times daily.
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Valjevo's air quality reflects the Kolubara river valley in western Serbia, with vehicle traffic on the A4 and surrounding manufacturing and agricultural operations contributing local sources. Winter residential wood and coal burning generates elevated PM2.5 under frequent temperature inversions in the enclosed valley, while the surrounding Maljen, Povlen, and Medvednik mountain ridgelines create significant topographic enclosure that concentrates heating and vehicle emissions during extended winter anticyclonic periods.
Today - 9 August | Pollution peaks at 16:00
AQI:
Medium
44.1/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Fair
29.4/100
O3 (ozone):
Medium
44.1/100
SO2 (sulfur dioxide):
Good
11.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.0/100
PM1 (ultrafine particles):
Good
12.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 18:00
AQI:
Medium
53.4/100
PM2.5 (fine particles):
Good
16.7/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Fair
30.0/100
O3 (ozone):
Medium
53.4/100
SO2 (sulfur dioxide):
Good
14.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.1/100
PM1 (ultrafine particles):
Fair
22.2/100
Pollen forecast in Valjevo
View pollen forecastFrequently Asked Questions
Is air quality bad in Valjevo right now?
On 9 August 2026, overall air quality in Valjevo is fair. NO2 is the main pollutant at 29.4/100. Pollution peaks around 4:00 PM (O3: 44.1/100).
Will air quality be worse tomorrow in Valjevo?
On 10 August 2026, air quality conditions in Valjevo will be similar to today, with NO2 forecast at fair at 30.0/100. Pollution peaks around 6:00 PM (O3: 53.4/100).
When is air pollution at its worst in Valjevo?
Air quality dips in Valjevo mostly track local combined tree and grass pollen peaks and periods of vehicle traffic on the A4 and local manufacturing and agricultural operations; conditions generally improve once the season shifts and rainfall or stronger winds return.
Are air quality levels in Valjevo 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: 10 August 2026 at 02:34 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.
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