Physicochemical Characterization of Air Pollution Particulate Matter (PM2.5 and PM&gt;2.5) in an Urban Area of Cotonou, Benin
Journal: Atmosphere
Year: 2023

PM2.5 and PM&gt;2.5 samples were collected in Cotonou (Benin) using high volume cascade impaction air samplers. The samplings were based on continuous collection over twelve days. Physical and chemical characteristics of samples were determined by size distribution (laser granulometry), specific surface areas (BET method), inorganic elements (ICP-MS), water-soluble ions (IC), CHNS analysis and organic compounds (GC-MS). Average concentrations of air particulate matter were 180.9 µg/m3 and 94.5 µ