Investigating the Impact of Construction in Urban Areas on Air Pollution in the Troposphere Using Sentinel Satellite Images: A Case Study in District 22 West of Tehran, Iran

Abstract

In recent years removing environmental pollution has become one of the main concerns of human life. Air quality in cities depends on weather conditions and the amount of pollutants produced. Today, air pollution is one of the most complex problems of human societies, which has left many negative effects on the health of living beings, especially humans. In this research, the average monthly and annual concentrations of air contaminators in the air pollution measurement stations of the General Directorate of Environmental Protection of Tehran province in the years 2013 to 2019 were examined. By using google earth engine site [1].  Processes that GEE (Google Earth Engine) contains a consolidated resource of open-access RS (Remote Sensing) datasets, along with a variety of algorithms to extract information for Earth’s surface monitoring [2], and using maximum likelihood classification method it recognized that examining the spatial changes of pollutants in the areas where there was more construction, the amount of contaminators was also higher. In terms of time, however, no special changes have been observed for all gases. For AI (Aerosol Index) pollutant, no very specific changes were observed within the region. We have seen a growing trend for carbon monoxide pollutant. For the nitrogen oxide pollutant, we have not seen any growth during this period of time. For sulfur dioxide, we have seen a growing trend. Also, in terms of seasonal changes, air pollutants are more concentrated in winter.