According to AccuWeather data for October 18, 2026, air pollution in Yerevan has reached levels unsafe for sensitive people. The service rated overall air quality as poor.
Particles less than 2.5 micrometers and less than 10 micrometers in diameter received poor ratings. The service rated air quality as fair for nitrogen dioxide and excellent for ground-level ozone. These readings reflect current conditions, not a forecast for the coming weeks. The ratings can be tracked on the weather service’s Yerevan air quality page.
When inhaled, particles smaller than 2.5 micrometers can enter the lungs and bloodstream. Their most serious effects are on the heart and lungs. These particles can trigger asthma flare-ups and lead to chronic respiratory diseases.
Among particles smaller than 10 micrometers, those larger than 2.5 micrometers can settle in the airways. Exposure can cause coughing and eye irritation, while frequent and prolonged exposure poses more serious health risks. If breathing becomes difficult outdoors or throat irritation develops, the service recommends spending less time outside.