Determination of PM?? deposition based on antimony flux to selected urban surfaces |
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| Authors: | Langner Marcel Kull Martin Endlicher Wilfried R |
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| Institution: | 1. Geography Department, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany;2. Institute of Geography and Geoecology, Karlsruhe Institute of Technology, P.O. Box 6980, 76049 Karlsruhe, Germany;1. College of Environmental Science and Engineering, Peking University, No. 5 Yiheyuan Rd, Haidian District, Beijing 100871, PR China;2. School of Safety and Environmental Engineering, Capital University of Economics and Business, No. 121 Zhangjialukou Rd, Fengtai Disctrict, Beijing 100070, PR China;3. Sichuan Environmental Monitoring Center, No. 88 3rd East Guanghua Rd, Qingyang District, Chengdu 610031, PR China;1. US Department of Agriculture, Forest Service, Rocky Mountain Research Station, 1221 South Main Street, Moscow, ID 83843, USA;2. US Geological Survey, Forest and Rangeland Ecosystem Science Center, Boise, ID 83706, USA;3. Laboratory for Atmospheric Research, Washington State University, Pullman, WA 99164, USA;1. Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, P.O. Box 2208, 71003 Heraklion, Greece;2. Finnish Meteorological Institute, Air Quality Research, Erik Palmenin aukio 1, 00101 Helsinki, Finland;1. Department of Building Science, School of Architecture, Tsinghua University, Beijing, 100084, PR China;2. Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, Beijing, 100084, PR China |
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| Abstract: | Deposition of PM(10) particles to several types of urban surfaces was investigated within this study. Antimony was chosen as a tracer element to calculate dry deposition velocities for PM(10), since antimony proved to be present almost exclusively in PM(10) particles in ambient urban air. During 18 months, eight sampling sites in Berlin and Karlsruhe, two cities in Germany, were operated. PM(10) concentrations and dry deposition were routinely sampled as two week averages. Additionally, leaf-samples were collected at three sites with tall vegetation. The obtained deposition velocities ranged from 0.8 to 1.3 cms(-1) at roadside sites and from 0.4 to 0.5 cms(-1) at the other sites. With reference to the whole canopy, additional deposition velocities of about 0.5 cms(-1) were obtained for leaf surfaces. As a consequence, it can be concluded that vegetation-covered areas beside streets show the highest potential to capture particles in urban areas. |
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