The influence of the nocturnal boundary layer on secondary trace species in the atmosphere at Dorset,Ontario |
| |
| Institution: | 1. Department of Wood Technology and Wood-Based Composites, Georg-August-University of Göttingen, Göttingen D-37077, Germany;2. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;3. College of Science, Nanjing Forestry University, Nanjing 210037, China;4. Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China;1. Research Institute of Management Science, Business School, Hohai University, Nanjing 210098, China;2. School of Business, Suzhou University of Science and Technology, Suzhou 215009, China;3. College of Management and Economics, Tianjin University, Tianjin 300072, China;4. Business School, Hohai University, Nanjing 210098, China;5. The Affiliated Huaian No. 1 People''s Hospital of Nanjing Medical University, Huaian 223300, China;6. Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China;7. University of Chinese Academy of Sciences, Beijing 100049, China |
| |
| Abstract: | The impact of the nocturnal boundary layer (NBL) on the concentrations of O3, H2O2, PAN and CH2O has been studied for two 4-day periods, one in the summer of 1989 and the other in the spring of 1990. Where the presence of the nocturnal layer is clear, O3, PAN and CH2O concentrations decrease rapidly and these species appear to be deposited to the surface. Break-up of the inversion in the morning returns concentrations to levels typical of the previous day. H2O2 is removed much faster than the other species and it is replenished much more slowly. This appears to be due to the H2O2 dissolving in water droplets resulting from the rapid cooling of the air. There is evidence for a morning maximum in PAN, likely due to the combination of high concentrations being brought downwards during the break-up of the NBL followed by thermal decomposition. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
