Developing the Molecular Underpinnings for Mechanisms of Growth of Secondary Organic Aerosol (SOA) Particles in Air

GSTDTAP

项目编号	1647386
	Developing the Molecular Underpinnings for Mechanisms of Growth of Secondary Organic Aerosol (SOA) Particles in Air
	Barbara Finlayson-Pitts
主持机构	University of California-Irvine
项目开始年	2016
	2016-12-01
项目结束日期	2019-11-30
资助机构	US-NSF
项目类别	Standard Grant
项目经费	881096(USD)
国家	美国
语种	英语
英文摘要	This project addresses the processes that lead to the formation and growth of secondary organic aerosol (SOA) in the atmosphere. These very small particles are formed from the oxidation of gaseous biogenic hydrocarbons, emitted by plants. The results of this research will provide guidance for parameterizing SOA processes in atmospheric models. The specific objectives of the project are to: (1) quantify incorporation of tracers with different properties such as functional groups and vapor pressures into SOA formed from various gas phase precursors under a range of experimental conditions; (2) measure rates of desorption of various tracers from different SOA for input into a proposed molecular model; (3) elucidate the nature of the surface region of SOA particles using extractive electrospray ionization mass spectrometry; and (4) measure the magnitude, time dependence and mechanism of uptake coefficients for amines of different structures on solid diacids and SOA.
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/70619
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Barbara Finlayson-Pitts.Developing the Molecular Underpinnings for Mechanisms of Growth of Secondary Organic Aerosol (SOA) Particles in Air.2016.