Tehran air quality 23 Azar 1401 / Tehran air quality index is red

According to Moj news agency, according to the announcement of the Tehran Air Quality Control Company, while the air of the capital is polluted for the eighth consecutive day, the pollutant index of “suspended particles less than 2.5 microns” is at 169, which means unhealthy conditions. The air index of the capital during the last 24 hours was “suspended particles less than 2.5 microns” with an average of 169 and the air quality of the capital was in unhealthy conditions.

In this climate, people with heart or lung disease, the elderly, and children should avoid long or heavy outdoor activities. Other people should reduce long or heavy outdoor activities.

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.