Seasonal variability and source apportionment of metals in the atmospheric deposition in Belgrade |
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| Authors: | Z Mijić A Stojić M Perišić S Rajšić M Tasić M Radenković J Joksić |
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| Institution: | 1. Department of Water and Soil Analysis, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b Street, 61-614 Poznań, Poland;2. National Marine Fisheries Research Institute, Ko???taja 1, 81-332 Gdynia, Poland;1. Agro-Environmental Protection Institute/Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China;2. College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China;1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;2. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China;3. Nanjing Center, China Geological Survey, Nanjing 210016, China;4. College of Environmental Science and Engineering, Hohai University, Nanjing 210098, China;1. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;2. Department of Chemistry, Analytical and Testing Center, Capital Normal University, Beijing 100048, China;3. Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523, United States;4. Department of Chemistry, University of Toronto, 80 St. George Street, M5S 3H6 Toronto, Canada |
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| Abstract: | The primary objective of this study is to assess anthropogenic impacts on the environment by determination of element atmospheric depositions. Bulk depositions were collected monthly, from June 2002 to December 2006, at three urban locations in Belgrade. Concentrations of Al, V, Cr, Mn, Fe, Ni, Cu, Zn, Cd and Pb were analyzed by atomic absorption spectrometry and the current deposition fluxes of atmospheric metals were established. Fourier analysis was applied in order to investigate seasonal variation of the monthly data set. Nickel, V, Fe and Al showed pronounced seasonal dependence, while seasonal variation of the other elements was not evident. The enrichment factors of Pb, Zn, Cd and Cu were obviously above those who could have been caused by natural processes, indicating a mainly anthropogenic origin. Nickel was intermediately enriched suggesting participation of both natural and anthropogenic sources. The multivariate receptor model, Unmix, was used to analyze a 5-yr element atmospheric depositions data set. Three main source profiles (mixed road dust, oil combustion and metal processing) were identified and the overall average percentage source contributions determined. |
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