| 项目编号: | 1552608
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| 项目名称: | COLLABORATIVE RESEARCH: Chlorine Activation in Biomass Burning Plumes |
| 作者: | Ryan Sullivan
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| 承担单位: | Carnegie-Mellon University
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| 批准年: | 2016
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| 开始日期: | 2016-02-01
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| 结束日期: | 2019-01-31
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| 资助金额: | 399501
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | biomass burning aerosol
; biomass burning
; clno2
; collaborative effort
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| 英文摘要: | This project is a collaborative effort to investigate the emissions of particulate chloride from biomass burning and the implications of these emissions on the formation of atmospheric ozone and small particles. The effort combines the facilities and expertise of atmospheric chemists at Carnegie-Mellon University (CMU) and University of Washington (UW) for the purpose of conducting a detailed set of laboratory experiments in a large smog chamber reactor in CMU's combustion facility. The chamber will be filled with smoke from the open combustion of globally relevant chloride emitting biomass fuels such as various types of grasses (e.g. Sawgrass, Wiregrass, Rice straw), and Palmetto (small palm species). Changes in the concentrations of gas-phase reactants and products will be determined in real-time using UW's state-of-the-art chemical measurement instrumentation. The investigators will apply kinetic box models to derive the combination of parameters that give the best measurement-model agreement for the development of parameters that can be used in regional and global models.
Particulate chloride undergoes efficient reactions with nitrogen oxide gases, releasing nitryl chloride (ClNO2) in the gas phase. The presence of ClNO2 can significantly perturb the troposphere's oxidant budget, the cycling of chlorine (ClOx), hydrogen (HOx), and NOx radicals, the oxidation of organic compounds and associated organic aerosol formation, and ground-level ozone levels. This project will be the first laboratory study to investigate the formation and yield of ClNO2 from dinitrogen pentoxide (N2O5), reacting with chloride in particle systems representative of biomass burning aerosols. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/92901
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Ryan Sullivan. COLLABORATIVE RESEARCH: Chlorine Activation in Biomass Burning Plumes. 2016-01-01.
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