Worst air pollution Zaječar, today and tomorrow
Today (16 July): Air quality in Zaječar is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (NO2: 40.2/100).
Tomorrow (17 July 2026): Air quality in Zaječar is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 40.0/100). 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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Given its setting on the Timok river plain in eastern Serbia, Zaječar's air quality is largely a function of vehicle traffic and light industry across the plain, moderated by the broader Zaječar weather patterns. Emissions tend to build during calm, high-pressure spells and clear more readily once winds or rain move through.
Today - 16 July | Pollution peaks at 04:00
AQI:
Medium
40.2/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Medium
40.2/100
O3 (ozone):
Fair
36.9/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.8/100
PM1 (ultrafine particles):
Good
12.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
40.0/100
PM2.5 (fine particles):
Good
11.6/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Fair
39.4/100
O3 (ozone):
Fair
40.0/100
SO2 (sulfur dioxide):
Good
10.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.5/100
PM1 (ultrafine particles):
Good
13.9/100
Pollen forecast in Zaječar
View pollen forecastFrequently Asked Questions
Is air quality bad in Zaječar right now?
On 16 July 2026, overall air quality in Zaječar is fair. O3 is the main pollutant at 36.9/100. Pollution peaks around 4:00 AM (NO2: 40.2/100).
Will air quality be worse tomorrow in Zaječar?
On 17 July 2026, air quality conditions in Zaječar will be similar to today, with AQI forecast at fair at 40.0/100. Pollution peaks around 4:00 PM (O3: 40.0/100).
When is air pollution at its worst in Zaječar?
Zaječar sees its worst air quality stretches line up with birch and hornbeam pollen peaks and periods of vehicle traffic and light industry across the plain; outside of those windows, the Zaječar area generally settles into calmer, more breathable conditions.
Are air quality levels in Zaječar 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.
Want to see air quality forecasts for other cities in Serbia?
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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