Worst air pollution Zenica, today and tomorrow
Today (16 July): Air quality in Zenica is fair. PM2.5, O3, HCHO, and PM1 are fair; AQI, NO2, and SO2 are medium; PM10 and CO are good. Pollution peaks around 11:00 PM (NO2: 54.1/100).
Tomorrow (17 July 2026): Air quality in Zenica is poor. AQI worsens to poor; NO2 increases to poor; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 2:00 AM (NO2: 60.2/100). 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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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 - 16 July | Pollution peaks at 23:00
AQI:
Medium
54.1/100
PM2.5 (fine particles):
Fair
25.4/100
PM10 (coarse particles):
Good
16.0/100
NO2 (nitrogen dioxide):
Medium
54.1/100
O3 (ozone):
Fair
37.1/100
SO2 (sulfur dioxide):
Medium
46.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.2/100
PM1 (ultrafine particles):
Fair
28.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 02:00
AQI:
Poor
60.2/100
PM2.5 (fine particles):
Fair
30.6/100
PM10 (coarse particles):
Good
11.0/100
NO2 (nitrogen dioxide):
Poor
60.2/100
O3 (ozone):
Medium
43.6/100
SO2 (sulfur dioxide):
Medium
41.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.0/100
PM1 (ultrafine particles):
Fair
35.9/100
Pollen forecast in Zenica
View pollen forecastFrequently Asked Questions
Is air quality bad in Zenica right now?
On 16 July 2026, overall air quality in Zenica is fair. O3 is the main pollutant at 37.1/100. Pollution peaks around 11:00 PM (NO2: 54.1/100).
Will air quality be worse tomorrow in Zenica?
On 17 July 2026, air quality conditions in Zenica will be worse than today, with AQI forecast at poor at 60.2/100. Pollution peaks around 2:00 AM (NO2: 60.2/100).
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.
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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