A comparison study of aerosol emissions sources in two receptor sites in Salvador (Brazil) city |
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| Authors: | J B de Andrade M A Macedo M Korn R F Gennari |
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| Institution: | 1. Instituto de Química , Universidade Federal da Bahia , Campus de Ondina, Salvador, Bahia, 40.170.280, Brazil;2. Universidade do Estado da Bahia ‐ Uneb, Estrada das Barreiras , Cabula, Salvador, Bahia, 40.000, Brazil;3. Instituto de Química ‐ USP , PO Box 20780, S?o Paulo, SP, 01498, Brazil |
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| Abstract: | Total suspended particles (TSP) and metal concentrations were determined in Salvador, Bahia, Brazil at two sites: a residential area and a residential‐commercial‐industrial neighborhood. The determined metals associated with atmospheric aerosols include Al, Ca, Cr, Cd, Fe, Mg, Mn, V, Zn and Na. Factor analysis was employed to identify the major atmospheric deposition sources. At one site the data were best represented by two sources: resuspended soil + marine aerosol and vehicular emissions, which represents 93% of the total system variance. In the second one the data were best represented by three sources: resuspended soil, metallurgy and building construction, which represents 79% of the total system variance. |
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| Keywords: | Factor analysis aerosol composition total suspended particles source characterization |
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