RUI: Brown Carbon Aerosol Production in Polluted Environments: The Effects of Oxidants, SO2, and Sunlight on Aqueous-Phase Aldehyde Reactivity

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项目编号	1523178
	RUI: Brown Carbon Aerosol Production in Polluted Environments: The Effects of Oxidants, SO2, and Sunlight on Aqueous-Phase Aldehyde Reactivity
	David De Haan
主持机构	University of San Diego
项目开始年	2015
	2015-07-01
项目结束日期	2018-06-30
资助机构	US-NSF
项目类别	Standard Grant
项目经费	366635(USD)
国家	美国
语种	英语
英文摘要	This Research in Undergraduate Institutions (RUI) project is investigating the formation of brown carbon in the atmosphere. The identification of important photochemical sources of brown carbon are important because light-absorbing particles in the atmosphere (black and brown carbon) are the second largest anthropogenic driver of climate change, after CO2 emissions. At least 20 diverse undergraduate students will participate in this research as part of this project, making it more likely that they will choose careers in science. The objectives of the research are: (1) to characterize aqueous-phase browning processes in droplets and in aerosol particles, with and without light and/or oxidants, (2) to measure the effect of dissolved SO2 on aldehyde partitioning and aerosol-phase products, (3) to determine the atmospheric significance of these reactions, and (4) to mentor and train a diverse cohort of undergraduate students, especially freshmen and sophomores, in atmospheric chemical research. Brown carbon formation will be quantified using cavity-attenuated phaseshift single-scattering albedo (CAPS-ssa) spectroscopy on evaporating droplets and aging aerosol particles with and without added aqueous-phase oxidants in a lab chamber, in rooftop photochemistry experiments, and at the CESAM cloud chamber at University of Paris East at Creteil.
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/68188
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	David De Haan.RUI: Brown Carbon Aerosol Production in Polluted Environments: The Effects of Oxidants, SO2, and Sunlight on Aqueous-Phase Aldehyde Reactivity.2015.