Isfahan's Air Unhealthy for Third Consecutive Day

Isfahan – Isfahan metropolis's air quality index on Thursday morning stood at 105 AQI, showing an orange, unhealthy status for sensitive groups for the third consecutive day.

Isfahan- The air quality index of Isfahan metropolis on Thursday morning with an AQI number of 105 shows an orange and unhealthy situation for sensitive groups for the third day in a row.

According to Mehr reporter, the air of Isfahan metropolis shows an unhealthy condition for sensitive groups (elderly, people with respiratory diseases, pregnant women and children) with an average AQI of 105, based on the data of 22 active monitoring stations ending at 8:00 AM on Thursday, the 23rd of Mehr.

The air quality index ranges from 0 to 50 clean air, 51 to 100 healthy air, 101 to 150 unhealthy for sensitive groups, 151 to 200 unhealthy for the public, 201 to 300 very unhealthy and 301 to 500 dangerous.

According to the data of the online air quality control system of the Environmental Organization (Isfahan region), the air index of this metropolis at the time of publication of this report is 99 at Aban street station, 90 in Ahmedabad, 83 in Governorate, 85 in Zamzam Park, 97 in University of Technology, 82 in Medical Sciences and Montazeri Town, 86 in Rudaki, 100 in Sepahanshahr, and 98 in Farshadi and Faiz streets.

The air index also shows an unhealthy AQI situation for sensitive groups at the Maidan El-Negleb station with the number 147, Jay and Malek Shahr 110, Kaveh, Parveen Etsami and Zainabieh streets 103, Rahnan 123, Mirza Taher 112 and Voldan 142, and Khorazi highway and Sharq Ghahab axis with 151 and 183 AQI respectively for the general public.

The air pollution index is usually measured for five air pollutants including carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2) and suspended particles below 2.5 microns (PM2.5) and recorded daily at air monitoring stations.

The Air Quality Index is a measure that converts the concentration of various pollutant compounds in the air such as carbon monoxide, sulfur dioxide, nitrogen compounds, ozone and suspended particles (particles smaller than 10 micrometers and particles smaller than 2.5 micrometers), which have different permissible limits with different units, into a unitless number and displays the state of air pollution.