Possibility of unhealthy air for all groups.
The air pollution in Tehran will continue until Monday.
According to this warning, the stability of the atmosphere, especially in the evening and night until the early hours of the next morning, will cause a relative increase in pollutants and a decrease in air quality to an unhealthy level for sensitive groups.
Also, if the sources of atmospheric pollutants are not controlled, there is a possibility that the air will become unhealthy for all groups in the high-traffic areas of the central and southern areas of Tehran.