Breathing six days of favorable air in the capital

According to Aria Heritage report, according to the announcement of Tehran Air Quality Control Company, currently the index pollutant is “suspended particles less than 2.5 microns” with an average of 96 and the air quality is acceptable.

The index pollutant of the capital’s air during the last 24 hours was “ozone” with an average of 127, and the air quality of the capital was “unhealthy for sensitive groups”.

The concentration of pollutants increased from 1 am to 3 am and was in an unhealthy condition for sensitive groups, but it decreased again from 4 am, reached 98 and was placed in an acceptable condition, which has continued until now.

It should be mentioned that the air quality index (AQI) is divided into five main categories; Based on this division, from zero to 50 “clean” air, from 51 to 100 “acceptable (healthy) or average” air, from 101 to 150 “unhealthy for sensitive groups”, from 151 to 200 “unhealthy for all” groups”, from 201 to 300 air is “very unhealthy” and from 301 to 500 air quality conditions are “dangerous”.