Air quality in Tehran reached 132 on November 21, 1401
According to the announcement of the Tehran Air Quality Control Company, today (November 21), Tehran’s air is in an unhealthy condition for sensitive groups.
Moj news agency report, according to Tehran Air Quality Control Company, the current index pollutant is “suspended particles less than 2.5 microns” with an average of 132 and the air quality is unhealthy for sensitive groups.
The pollutant of the air index of the capital during the last 24 hours was “suspended particles less than 2.5 microns” with an average of 130, and the air quality of the capital was in unhealthy conditions for sensitive groups.
Air quality (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”.