According to the announcement of the Tehran Air Quality Control Company, due to the accumulation of pollutants during the past hours and the lack of effective wind, an unhealthy and unhealthy situation for sensitive groups is expected in most areas.
According to ISNA, based on the forecasts made by the air quality control company of Tehran, on the morning of Friday, 19 December 1400, due to the accumulation of pollutants during the past hours and the lack of effective wind, in most areas, an unhealthy and unhealthy situation for sensitive groups is expected. is expected This is while the wind speed will gradually increase with the growth of atmospheric instability during the day, and suitable conditions will be provided for the dispersion of pollutants and the improvement of air quality.
Atmospheric instability and increasing wind speed will continue until late Friday, which will lead to a decrease in the concentration of suspended particles and, as a result, an acceptable situation in most areas.
At the same time, on the morning of Saturday, December 20, 1400, with the start of traffic on the first day of the week, the concentration of pollutants will increase to some extent. The relative decrease in wind speed during the day will limit the dispersion of pollutants. Also, the increase in evening traffic in the late hours of Saturday along with the lack of effective wind will increase the concentration of suspended particles and decrease the air quality in most areas.
