A laboratory study on the scavenging of SO2 by snow crystals |
| |
| Institution: | 1. Swinburne University of Technology, Hawthorn, Victoria, Australia;2. Zhejiang Industry & Trade Vocational College, Wenzhou, Zhejiang, China;3. Jilin University, Changchun, Jilin, China;4. RMIT University, Melbourne, Victoria, Australia;5. Stony Brook University, Stony Brook, NY, United States;1. Department of Civil, Construction, and Environmental Engineering, Iowa State University, Ames, IA 50011-1066, United States;2. Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011-1066, United States |
| |
| Abstract: | A laboratory experiment is described where the uptake of SO2 by dendritic snow crystals was studied. In a first experimental series the uptake of SO2 was investigated during the growth of the snow crystals from water vapor with and without the presence of H2O2 in the air. In a second series of experiments we studied the uptake of SO2 by snow crystals which had completed their growth. The results of our experiments showed that under both conditions SO2 became scavenged by snow crystals. The uptake of SO2 was particularly pronounced during the growth of the snow crystals, and at temperatures close to 0°C where a quasi-liquid layer exists at the surface of ice. As expected, the SO2 uptake becomes enhanced in the presence of H2O2. The present results are in qualitative agreement with previous studies involving bulk ice. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
