Worst air pollution Yerevan, today and tomorrow
Today (9 August): Air quality in Yerevan is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 54.4/100).
Tomorrow (10 August 2026): Air quality in Yerevan is medium. All pollutants stay as today. Pollution peaks around 4:00 PM (O3: 48.9/100). 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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Yerevan's air quality reflects the Ararat Plain's enclosed basin at 990 metres surrounded by the Caucasus and Armenian Highlands, with vehicle traffic on surrounding expressways and the manufacturing, construction, and residential heating corridor generating elevated PM2.5 under persistent winter inversions. The Ararat Mountain backdrop creates dramatic topographic enclosure, while the Armavir Valley's channelled winds provide seasonal relief and Yerevan generally maintains moderate to elevated South Caucasus capital city readings throughout the winter months.
Today - 9 August | Pollution peaks at 16:00
AQI:
Medium
54.4/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Good
13.3/100
O3 (ozone):
Medium
54.4/100
SO2 (sulfur dioxide):
Good
3.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
10.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Medium
48.9/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
9.0/100
NO2 (nitrogen dioxide):
Good
11.5/100
O3 (ozone):
Medium
48.9/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.5/100
PM1 (ultrafine particles):
Good
9.8/100
Frequently Asked Questions
Is air quality bad in Yerevan right now?
On 9 August 2026, overall air quality in Yerevan is medium. AQI is the main air quality indicator at 54.4/100. Pollution peaks around 4:00 PM (O3: 54.4/100).
Will air quality be worse tomorrow in Yerevan?
On 10 August 2026, air quality conditions in Yerevan will be similar to today, with AQI forecast at medium at 48.9/100. Pollution peaks around 4:00 PM (O3: 48.9/100).
When is air pollution at its worst in Yerevan?
The biggest local contributors to pollution in Yerevan are vehicle traffic, manufacturing and food processing, as well as construction dust, particularly once temperature inversions set in over the valley. Topographic enclosure in the valley lets pollution accumulate rather than clear out. Residential heating through the colder months is a major seasonal source of particulates.
Are air quality levels in Yerevan 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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