Study of air pollutant precipitated particulates of Shiraz Urban region atmosphere

Airborne Particulates considered as a kind of air pollutant by different air pollution standards. Such particulates at western and southwestern parts of the Persian plateau’s atmosphere are known to be main source of air pollution. In spite of their small size (with mean diameter of 550 nm) such particulates would precipitate at lower altitude of atmosphere mainly due to their heavier mass in comparison to other invisible components of air (N₂ and O₂ gas molecules) at normal weather condition. Prototypes of such precipitated particulate samples from Shiraz Urban region investigated through PXRD structural analysis and PIXE method. In addition to that, physical parameters of the collected prototypes such as size and density distributions measured to be used modelling the precipitation process assuming classical Maxwell Boltzmann distribution of particulates within air. Our findings confirms the clay nature of pollutants with their phase composition. We plan to present our findings through a poster at APS march meeting.