Temporal Changes of NO2 and CO emissions in Central Districts of Istanbul City

This study focused on the temporal changes of pollutant gas concentrations (NO2 and CO) in air data from different resources, cornerstone living life. As a result analyzes carried out for total seventeen months (January 2020 – May 2021) with consistent data, increase decrease trends two polluting gases atmosphere were revealed. Geographical studies one terrestrial station (Üsküdar Mecidiyeköy) Anatolian European sides Istanbul, most populated city Turkiye. Satellite-based research was also Sentinel-5 Precursor (S5p), which Space Agency (ESA) created to detect monitor concentration atmosphere. It has been determined that either station-based or S5p satellite based can quality.