SO2 oxidation in cloud drops containing NaCl or sea salt as condensation nuclei |
| |
| Institution: | 1. Innovation, Holcim Technology Ltd., CH-5113 Holderbank, Switzerland;2. Laboratory of Construction Materials, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland;3. Building Materials, Lund University, Box 124, 221 000 Lund, Sweden;1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;2. CSIRO Energy Technology, PO Box 52, North Ryde, NSW 1670, Australia;1. Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China;2. Australia-China Centre for Air Quality Science and Management (Guangdong), Guangzhou 511443, China;3. Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China;1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;2. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;3. CSIRO Energy, North Ryde, NSW 1670, Australia;4. New South Wales Department of Planning, Industry and Environment, Lidcombe, NSW 1825, Australia |
| |
| Abstract: | Experimental results from cloud-chamber studies provide direct evidence that NaCl, artificial sea salt and natural sea salt promote faster rates of aqueous SO2 oxidation than observed in the absence of these salts. However, the chemical basis for this effect has not been clarified. Oxidation rates > 30% h−1are observed in cloud-chamber experiments with 0.4 μm-diameter salt particles as cloud nuclei and a cloud pH of 6. SO2 oxidation under similar atmospheric conditions might account for the rapid formation of sulfate observed in marine fogs. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
