The flux of isoprene from a willow coppice plantation and the effect on local air quality |
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| Institution: | 1. Chemical Analytics and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany;2. Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany;3. WasserCluster Lunz, 3293 Lunz am See, Austria;4. Department of Bioscience, Aarhus University, Aarhus, Denmark;5. Catalan Institute for Water Research (ICRA), Girona, Spain;1. Jiaozhou Bay National Marine Ecosystem Research Station, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;2. Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;4. CAS Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;5. Center for Ocean Mega Science, Chinese Academy of Sciences, Qingdao 266071, China;1. Department of Environment and Energy, Sejong University, Seoul 143-747, South Korea;2. Department of Environmental Engineering and Earth Sciences, Clemson University, Anderson, SC 29625-6510, United States;1. Department of Anatomy, Faculty of Biomedical Sciences, Kampala International University-Western Campus, Ishaka-Busheyi, Uganda;2. Microbiology and Immunology Department, Faculty of Biomedical Sciences, Kampala International University-Western Campus, Ishaka-Busheyi, Uganda;3. Microbiology Department, Faculty of Life Sciences, University of Ilorin, Ilorin, Nigeria |
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| Abstract: | Isoprene fluxes from a Salix viminalis (willow) plantation in western Sweden were measured using the relaxed eddy accumulation (REA) technique. Fluxes of up to 0.23 μg m?2 s?1 could be observed. A standard emission factor at 303 K and a PAR flux of 1000 μ mol m?2 s?1 was estimated to 0.98 μg m?2 s?1 by using the G93 algorithm. The chemistry of an air parcel passing over a willow coppice plantation was investigated utilising a Lagrangian box model in which the measured isoprene fluxes were used as input data. Dispersion after the field was accounted for by a procedure based on the Gaussian plume model. The calculations indicate that, in most cases, the isoprene emissions have a small effect on the local air quality. |
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