A biogenic volatile organic compound emission inventory for Hong Kong |
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| Authors: | Jeanie Kin-Yin Tsui Alex Guenther Wing-Kin Yip Feng Chen |
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| Institution: | 1. School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China;2. National Center for Atmospheric Research, Atmospheric Chemistry Division, CO 80307-3000, USA;1. Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;2. Center for Environmental Innovation Design for Sustainability, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;3. Chemistry and Environment Science College, Inner Mongolia Normal University, Hohhot 010022, China;4. School of Science, Kathmandu University, Dhulikhel, Nepal;1. National Research Council (CNR), Institute of Agro-Environmental & Forest Biology (IBAF), Porano (TR), Italy;2. Global Change Research Centre, Brno, Czech Republic;3. Consiglio per la ricerca e la sperimentazione in agricoltura (CRA), Research Center for the Soil-Plant System, Rome, Italy;4. Sapienza University, Department of Plant Biology, Rome, Italy;5. Dept. of Science and Technology for the Environment, University of Molise, Italy;6. National Research Council (CNR), Institute for Plant Protection, Sesto Fiorentino, Florence, Italy;1. LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences (IAP, CAS), Beijing 100029, China;2. Department of Earth System Science, University of California, Irvine, CA 92697, USA;3. 2B Technologies, Inc., Boulder, CO 80301, USA;4. National Center for Atmospheric Research, Boulder, CO 80307, USA;1. TERRA Research Center, University of Liege, Gembloux Agro-Bio Tech, 8 Avenue de la Faculté, B-5030 Gembloux, Belgium;2. Royal Belgian Institute for Space Aeronomy, Ringlaan 3, B-1180 Brussels, Belgium;3. Plant Biology Laboratory, AGRO-BIO-CHEM Research Unit, University of Liege, Gembloux Agro-Bio Tech, 2 Passage des Déportés, B-5030 Gembloux, Belgium;4. Department of Analytical Chemistry, Ghent University, Krijgslaan 281-S12, B-9000 Ghent, Belgium;1. College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China;2. Engineering Experimental Training Center, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, PR China;3. School of Landscape Architecture, Zhejiang A & F University, Lin''an 311300, PR China;4. Institute for Environmental Sciences, University of Shizuoka, 52-1 Yada, Shizuoka 422-7 8526, Japan;5. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China |
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| Abstract: | Biogenic volatile organic compounds (BVOCs) in the atmosphere react to form ozone and secondary organic aerosols, which deteriorate air quality, affect human health, and indirectly influence global climate changes. The present study aims to provide a preliminary assessment of BVOC emissions in Hong Kong (HKSAR). Thriteen local tree species were measured for their isoprene emission potential. Tree distribution was estimated for country park areas based on field survey data. Plant emission data obtained from measurements and the literature, tree distribution estimation data, land use information, and meteorological data were combined to estimate annual BVOC emissions of 8.6×109 g C for Hong Kong. Isoprene, monoterpenes, and other VOCs contributed about 30%, 40%, and 30% of the estimated total annual emissions, respectively. Although hundreds of plant species are found in Hong Kong country parks, the model results indicate that only 10 tree species contribute about 76% of total annual VOC emissions. Prominent seasonal and diurnal variations in emissions were also predicted by the model. The present study lays a solid foundation for future local research, and results can be applied for studying BVOC emissions in nearby southern China and Asian regions that share similar climate and plant distributions. |
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