COLLABORATIVE RESEARCH: Chlorine Activation in Biomass Burning Plumes

GSTDTAP

项目编号	1551981
	COLLABORATIVE RESEARCH: Chlorine Activation in Biomass Burning Plumes
	Joel Thornton
主持机构	University of Washington
项目开始年	2016
	2016-02-01
项目结束日期	2019-01-31
资助机构	US-NSF
项目类别	Standard Grant
项目经费	378726(USD)
国家	美国
语种	英语
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.
来源学科分类	Geosciences - Atmospheric and Geospace Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/69105
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Joel Thornton.COLLABORATIVE RESEARCH: Chlorine Activation in Biomass Burning Plumes.2016.