The airborne particulates that deposited in Quan-In Industrial park were observed with SEM and analyzed with EDX. The deposited particles were categorized into three groups: black smoke particulates released from fuel combustion, salt spray crystalline particulates from ocean, and soil dusts from construction of factories. The morphology and chemical composition of the airborne particulates, can be used to set up the data bank of air pollutants in Quan-In area and used as an important reference for identification of pollution sources and pollution effects on plants.