Worst air pollution Orūmīyeh, today and tomorrow
Today (9 August): Air quality in Orūmīyeh is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:30 PM (O3: 65.2/100).
Tomorrow (10 August 2026): Air quality in Orūmīyeh is poor. All pollutants stay as today. Pollution peaks around 2:30 PM (O3: 60.0/100). 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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Orūmīyeh's air quality reflects the flat Iranian West Azerbaijan province's shrinking Lake Urmia basin at 1,332 metres, with vehicle density and the manufacturing, agricultural, and heating corridor generating elevated PM2.5. The extraordinary Lake Urmia's catastrophic desiccation generates severe salt and dust PM10 events, while the Zagros mountain enclosure concentrates emissions and Orumiyeh maintains a uniquely severe lake bed dust air quality challenge throughout the year.
Today - 9 August | Pollution peaks at 19:30
AQI:
Poor
65.2/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
14.9/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Poor
65.2/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
6.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:30
AQI:
Poor
60.0/100
PM2.5 (fine particles):
Good
14.9/100
PM10 (coarse particles):
Good
15.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Poor
60.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
9.7/100
Frequently Asked Questions
Is air quality bad in Orūmīyeh right now?
On 9 August 2026, overall air quality in Orūmīyeh is poor. AQI is the main air quality indicator at 65.2/100. Pollution peaks around 7:30 PM (O3: 65.2/100).
Will air quality be worse tomorrow in Orūmīyeh?
On 10 August 2026, air quality conditions in Orūmīyeh will be similar to today, with AQI forecast at poor at 60.0/100. Pollution peaks around 2:30 PM (O3: 60.0/100).
When is air pollution at its worst in Orūmīyeh?
The biggest local contributors to pollution in Orūmīyeh are vehicle traffic, textile and manufacturing operations, together with crop farming, particularly once dry, windy weather picks up. Dust carried on these winds adds substantially to particulate levels. Fuel burned for winter heating adds an extra layer of particulates on top of other sources.
Are air quality levels in Orūmīyeh 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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