Tehran’s air quality 3D 1401/Tehran’s air quality index is 57 and favorable
According to Moj news agency, based on the forecasts made, according to the announcement of the control company Air quality in Tehran In the morning of January 3, due to the formation of atmospheric instability and effective wind during the past hours, the concentration of pollutants will be reduced and the air quality will be within the acceptable range in most areas.
The dispersion of pollutants will be facilitated by the rule of atmospheric instability and rain during the day. The continuation of these weather conditions and effective wind until late Saturday will reduce the concentration of suspended particles, and the establishment of an acceptable situation in most areas is not far from expected.
Unstable atmospheric conditions and continued rain until tomorrow morning (January 4) will prevent the accumulation of pollutants and will lead to an acceptable situation in most areas. Effective wind during the day prevents the dispersion of pollutants.
With the weakening of atmospheric instability and the reduction of wind speed until late Sunday along with the increase in evening traffic, the concentration of suspended particles will be increased to some extent, and a decrease in air quality is expected in some high-traffic areas.
According to the announcement of the air quality control company, the pollutant index of “suspended particles less than 2.5 microns” is at 57, which means acceptable conditions. Also, the pollutant index of the capital’s air during the past 24 hours is “suspended particles less than 2.5 microns” with The average was 71 and the air quality of the capital was in acceptable conditions.
It should be mentioned that the air quality (AQI) is divided into five main categories, based on which it is defined from 0 to 50 in the range of clean air, from 51 to 100 the air is acceptable, healthy or average, and from 101 to 150 Unhealthy air for sensitive groups. In the range of 151 to 200, the air is in the unhealthy range for all groups, and in the range of 201 to 300, the air is in the very unhealthy range. According to this classification, air quality conditions in the range of 301 to 500 are dangerous.