Document Type : Original Article

Authors

• Rahim Heydari ¹
• Naseh Valizadeh ²

¹ Associate Professor, Department of Geography and Urban Planning, Faculty of Planning and Environmental Sciences, University of Tabriz, tabriz, Iran

² MSc,, Department of Geography and Urban Planning, Faculty of Planning and Environmental Sciences, Tabriz University, Tabriz, Iran

Abstract

The purpose of the current research is to investigate the air quality index and its relationship with changes in the green space of Tabriz metropolis. Data, air pollution data from 1383 to 1396 and five main air pollutants (PM10), SO2, CO, O3, NO2) have been used, which include stations (Abrsan, Health, Railway, Prayer Square, Baghshamal, Hakim Nizami) ) is The research method, after averaging, the data were converted into standard data in Excel software, entered into the software (GIS) and using the interpolation method (IDW), the air quality map of unhealthy days was obtained. Finally, by using the index (NDVI) of green space images of 1969-83-96 in order to relate it to the state of air quality and the trend of decreasing or increasing green space in the mentioned time period, the final map of the number of days of unhealthy air quality was prepared. According to the obtained results, the state of health index of air quality in Tabriz metropolis has a direct relationship with changes in green space. The highest volume and density of pollution in the middle and center of the city is due to the large volume of traffic in these areas and daily commuting to these areas. In the southern and southwestern parts of the city, industrial areas, due to the high concentration of pollutants, air pollution is more in cold seasons. The most pollution is related to the pollutant (PM10) which is one of the most important pollutants polluting the air of Tabriz city.

Keywords

• Air pollution
• green space
• air quality index
• Tabriz metropolitan
• NDVI

Main Subjects

• Remote sensing and Gis