Airborne particles in the Venezuelan savannah during burning and non-burning periods |
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| Institution: | 1. Department of Building Technology, Sunyani Technical University, Sunyani, Ghana;2. Department of Civil Engineering, Sunyani Technical University, Sunyani, Ghana;3. School of Transportation, Southeast University, Nanjing, PR China;4. Department of Construction and Wood Technology, Akenten Appiah-Menka University of Skill Training & Entrepreneurial Development, Kumasi, Ghana;1. Department of Neurology, Erasmus Medical Center, Rotterdam, the Netherlands;2. Department of Paediatrics and Adolescent Medicine, Division of Paediatric Neurology, Medical University of Vienna, Austria;3. Department of Paediatrics, Klinikum Stuttgart/Olgahospital, Stuttgart, Germany;4. Department of Neurology, Birmingham Women and Children''s Hospital, Birmingham, UK;5. Children''s Neurosciences, Evelina London Children''s Hospital at Guy''s and St Thomas'' National Health Service Foundation Trust, London, Faculty of Life Sciences and Medicine, Kings College Hospital, London, UK;6. Neuropaediatric Unit, Karolinska University Hospital, Sweden;1. Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an, 710061, China;2. Institute of Global Environmental Change, Xi''an Jiaotong University, Xi''an, 710049, China;3. School of Human Settlements and Civil Engineering, Xi''an Jiaotong University, Xi''an, 710049, China;4. Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi''an Jiaotong University, Xi''an, 710049, China;5. School of Social & Environmental Development, National Institute of Development Administration (NIDA), Bangkok, 10240, Thailand;6. Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket, 83120, Thailand;7. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China;1. Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), Avda Gregorio del Amo nº 8, 28040 Madrid, Spain;2. Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain;1. Division of Adolescent Medicine, Nationwide Children’s Hospital, 700 Children’s Drive, Columbus, OH 43205, United States;2. The Ohio State University College of Medicine, 370 W 9th Avenue, Columbus, OH 43210, United States;3. Division of Complex Care, Nationwide Children’s Hospital, 700 Children’s Drive, Columbus, OH 43205, United States;4. Center for Clinical and Translational Research, The Research Institute at Nationwide Children’s Hospital, 700 Children’s Drive, Columbus, OH 43205, United States |
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| Abstract: | Atmospheric concentrations and size distribution of suspended particles at 1.5 or 3.9 m height were determined at five Venezuelan savannah sites. The results show a bimodal distribution in both the vegetation burning and non-burning periods, with significantly higher concentration of particles of all sizes during the burning period. During vegetation fires the concentration of fine particles (< 1.5 μm) increases much more than the concentration of coarse particles (> 1.5 μm), producing an MMD that ranges from 0.60 to 0.95 μm. The MMD in the non-burning period range from 1.3 to 3.3 μm. Possible sources of particles of various sizes in both periods are discussed. |
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