based on the provided content, here is a rewritten version of the article in Persian, aiming to maintain the original meaning while making it appear as naturally written:

Alpine air quality index in the city of Isfahan, according to data from 12 active monitoring stations over the past 24 hours ending at 7 AM on Saturday, June 27th, stands at an average of 86 AQI, which is considered acceptable.

The online air quality control system of the Environmental Organization (Isfahan region) indicates that today’s air quality index in Isfahan is yellow and acceptable at various locations: 25 Aban Street with 81, Zamzam Park at 65, Isfahan University of Technology with 66, Rehnan Street at 99, Zainabiyeh Street at 86, Sepahanshahr at 92, Mirdad and Fersadi Streets with 70, Feiz Street at 76, and Kaveh Boulevard with 79 AQI.

However, the air quality index in Rodeki Street is at 104 and in Kordabad it is 143 AQI, both in the orange zone and considered unhealthy for sensitive groups.

Some monitoring stations, including Pirovanna, Veldan, Ahmadabad, Kharaz Street, and the provincial governorate, are currently off-line.

In Khomeinishahr, the air quality index is 68, Shahinshahr and Mobarak city are at 78 AQI, both in the yellow and acceptable range, while Zarinshahr has an average AQI of 105, and Ghejavoristan with an average of 121 AQI, both considered unhealthy for sensitive groups.

Monitoring stations in nearby cities of Isfahan, such as Sajzi, Najafabad, Dalatabad, Mahmoudabad industrial town, and Kashan University of Medical Sciences, are also currently off-line.

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

This index is typically measured for five air pollutants including carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter smaller than 2.5 micrometers (PM2.5), and is recorded daily at air quality monitoring stations.

The air quality index (AQI) is a standard that converts the concentration of various pollutants in the air—such as carbon monoxide, sulfur dioxide, nitrogen-containing compounds, ozone, and particulate matter (smaller than 10 micrometers and smaller than 2.5 micrometers)—which have different permissible limits and units, into a single unitless number, displaying the level of air pollution.