Worst air pollution Banja Luka, today and tomorrow
Today (9 August): Air quality in Banja Luka is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 36.4/100).
Tomorrow (10 August 2026): Air quality in Banja Luka is fair. AQI improves to medium; NO2 decreases to medium; O3 decreases to medium; SO2 increases to fair; HCHO increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 43.7/100). Airmine updates local air quality forecasts four times daily.
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Banja Luka's air quality reflects its position in the Vrbas river valley in the Republika Srpska, with vehicle traffic on the M-16 and the surrounding light industrial and thermal power plant operations contributing local sources alongside residential wood and coal burning. The Vrbas valley's topographic enclosure between the Kozara and Manjača massifs concentrates emissions under winter inversions, while Balkan energy poverty-driven biomass burning generates seasonal PM2.5 challenges typical of this western Bosnian city.
Today - 9 August | Pollution peaks at 14:00
AQI:
Fair
36.4/100
PM2.5 (fine particles):
Good
13.7/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Fair
32.3/100
O3 (ozone):
Fair
36.4/100
SO2 (sulfur dioxide):
Good
10.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.8/100
PM1 (ultrafine particles):
Good
18.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Medium
43.7/100
PM2.5 (fine particles):
Good
15.0/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Medium
42.4/100
O3 (ozone):
Medium
43.7/100
SO2 (sulfur dioxide):
Fair
20.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.1/100
PM1 (ultrafine particles):
Fair
20.5/100
Pollen forecast in Banja Luka
View pollen forecastFrequently Asked Questions
Is air quality bad in Banja Luka right now?
On 9 August 2026, overall air quality in Banja Luka is fair. AQI is the main air quality indicator at 36.4/100. Pollution peaks around 2:00 PM (O3: 36.4/100).
Will air quality be worse tomorrow in Banja Luka?
On 10 August 2026, air quality conditions in Banja Luka will be similar to today, with HCHO forecast at fair at 21.1/100. Pollution peaks around 4:00 PM (O3: 43.7/100).
When is air pollution at its worst in Banja Luka?
People in Banja Luka tend to notice reduced air quality when local tree and grass allergens peaks, or because of vehicle traffic on the M-16 and the neighbouring light industrial and thermal power plant operations; a shift to wetter or windier weather typically brings noticeable relief.
Are air quality levels in Banja Luka 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: 9 August 2026 at 20:27 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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