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The sulfur pollutants are the source of a sizeable portion of the airpollution. In this work, the spatial distribution and temporal trend of themass concentration of two of the critical sulfur pollutants, SO2 and SO4, inaddition to the aerosol optical properties (AOD) were analyzed over the regionof the Middle East and North Africa (MENA) from multiple satellite resourcesand Modern Era Retrospective Analysis for Research and Applications version 2(MERRA2) reanalysis data.  The So2 and So4 data used in these analyses are obtained from (MERRA2) with aresolution of 0.5 x 0.625 deg throughout a period of 10 years (2005 to 2015).On the other hand, the temporal trend and spatial distribution of AOD wasidentified from four different satellite data. (1) moderate resolution imagingspectroradiometer (MODIS) Level 3 AOD data at 550 nm wavelengths fromCollection 6 algorithm (combined dark target and deep blue algorithms) are usedfor 10 years temporal analysis (2006 to 2015). Data were obtained for theperiod 2006 to 2015 (2) Multi angle imaging spectroradiometer (MISR) with 0.5deg spatial resolution for the same 10 years (2006 to 2015). (3) Sea ViewingWide Field of View Sensor (SeaWIFS) with 0.5 deg for the period (2005 to 2010).(4) Ozone Monitoring Instrument (OMI) AOD at 500 nm wavelength with resolution1 degree.

Spatiotemporal Assessment of So2, SO4 and AOD from over MENA Domain from 2006 to 2016 Using multiple satellite Data and Reanalysis MERRA2 Data