Abstract
The characteristics of the airborne particulates in the industrial belt of the city of Madrid were studied and their metal content in Pb, Ca, Cu, Ni, Fe, Mn, Cr, Mg, Zn and K were determined, with the purpose of assessing any differences when compared to typical urban particulates. The object was to examine the sources of the trace metals analysed and to evaluate their spatial and temporal variations. Six sample collection points were chosen in the industrial belt of the city of Madrid and more than 320 samples were collected over a period of one year. Various forms of source identification were used in order to study the origins of each of the analysed metals. The data obtained indicates that the area studied has a different kind of pollution from that which typically occurs in urban or industrial areas. We were also able to explain a high percentage of the inorganic pollution investigated using a small number of sources: resuspended ground dust, vehicle exhaust, building, industrial combustion and metal processes, and fuel-oil combustion.
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