Worst air pollution Zenica, today and tomorrow
Today (30 August): Air quality in Zenica is poor. AQI and NO2 are poor; PM2.5 and SO2 are moderate; PM10, O3, HCHO, and PM1 are fair; CO is good. Pollution peaks around 6:00 AM (NO2: 61.0/100).
Tomorrow (31 August 2026): Air quality in Zenica is moderate. AQI improves to moderate; PM10 increases to moderate; NO2 decreases to moderate; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 52.9/100). Airmine updates local air quality forecasts four times daily.
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Air quality in Zenica is shaped mainly by steel-industry emissions trapped by the enclosed valley, against a backdrop of the Bosnia and Herzegovina, Federation of landscape in the Bosna river valley, home to Bosnia's largest steelworks. Ventilation varies with the terrain, and conditions are typically at their best when weather systems move through more actively, while extended dry, calm periods tend to coincide with the town's least favourable air quality readings.
Today - 30 August | Pollution peaks at 06:00
AQI:
Poor
61.0/100
PM2.5 (fine particles):
Moderate
42.3/100
PM10 (coarse particles):
Fair
39.5/100
NO2 (nitrogen dioxide):
Poor
61.0/100
O3 (ozone):
Fair
35.1/100
SO2 (sulfur dioxide):
Moderate
40.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.4/100
PM1 (ultrafine particles):
Fair
34.1/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 23:00
AQI:
Moderate
52.9/100
PM2.5 (fine particles):
Moderate
43.9/100
PM10 (coarse particles):
Moderate
44.5/100
NO2 (nitrogen dioxide):
Moderate
52.9/100
O3 (ozone):
Fair
36.5/100
SO2 (sulfur dioxide):
Moderate
43.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.7/100
PM1 (ultrafine particles):
Fair
36.6/100
Pollen forecast in Zenica
View pollen forecastFrequently Asked Questions
Is air quality bad in Zenica right now?
On 30 August 2026, overall air quality in Zenica is poor. AQI is the main air quality indicator at 61.0/100. Pollution peaks around 6:00 AM (NO2: 61.0/100).
Will air quality be worse tomorrow in Zenica?
On 31 August 2026, air quality conditions in Zenica will be better than today, with AQI forecast at moderate at 52.9/100. Pollution peaks around 11:00 PM (NO2: 52.9/100).
When is air pollution at its worst in Zenica?
The clearest dips in Zenica's air quality track hornbeam and oak pollen peaks and periods of steel-industry emissions trapped by the enclosed valley; the rest of the year typically brings clearer, more consistent conditions for the Bosnia and Herzegovina, Federation of area, particularly once autumn winds set in and the local terrain ventilates more easily than during calmer stretches.
Are air quality levels in Zenica 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 08:36 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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