Trace elements in atmospheric aerosol in the heidelberg area,measured by instrumental neutron activation analysis |
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| Affiliation: | 1. H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan;2. Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan;3. Institute of Biomedical Sciences, Dow University of Health Sciences, OJHA Campus, SUPARCO ROAD, Karachi 75330, Pakistan;1. Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, PR China;2. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China |
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| Abstract: | The concentrations of 18 trace elements in atmospheric aerosol are measured by neutron activation and γ-ray spectrometry using Ge(Li)-detectors. Trace element concentrations of different filter materials used for aerosol deposition are determined. The trace element concentrations measured in Heidelberg are reported for the measuring period (April–June, 1971) and the average values are compared to values given in the literature for Paris. East Chicago and Niles (U.S.A.). Considering the concentrations of the different elements in the aerosol relative to the concentration of sodium, three groups of elements are of interest which are related to the ocean (Na and Cl), the earth crust (La, Fe, Sc, Mn, Cr, Ce, Sm), and to anthropogenous production (Cd, Ag, Sn. Sb, Hg, Co, Br) as the main sources. |
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