Volatile Product Formation and Atmospheric Lifetimes of Biogenic Organic Aerosols

GSTDTAP

项目编号	1656889
	Volatile Product Formation and Atmospheric Lifetimes of Biogenic Organic Aerosols
	Tran Nguyen
主持机构	University of California-Davis
项目开始年	2017
	2017-05-15
项目结束日期	2020-04-30
资助机构	US-NSF
项目类别	Continuing grant
项目经费	404600(USD)
国家	美国
语种	英语
英文摘要	This project is focused on developing a better understanding of how reactive carbon evolves in the atmosphere. Highly controlled environmental chamber experiments will be conducted to evaluate the aging chemistry of organic aerosol. Experiments will help to determine the extent to which aerosol aging depends on particle characteristics (such as liquid water, inorganic composition, pH, organic composition, and surface area) as well as environmental conditions (such as temperature and relative humidity). The objectives of the research are to: (1) Quantify the production of oxygenated volatile organic compounds (OVOC) and the oxidative lifetimes from hydroxyl radical (OH)-initiated oxidation of suspended organic aerosol (OA); (2) Characterize how physical, chemical, and environmental parameters affect the OH lifetime and OVOC production of the biogenic OA under investigation; (3) Investigate the difference in mechanism between aqueous OH and heterogeneous OH oxidation; and (4) Study the effects of direct photolysis on OA. This research will provide important new data inputs and constraints for atmospheric models that simulate reactive carbon in the atmosphere. The results are expected to significantly improve the understanding of how semi-volatiles and particles affect climate, air quality, and health.
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文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/71070
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Tran Nguyen.Volatile Product Formation and Atmospheric Lifetimes of Biogenic Organic Aerosols.2017.