Field and Laboratory Study of Rural Volatile Organic Compounds (VOCs) Oxidation and Secondary Organic Aerosol (SOA) Formation Utilizing Measurements of Formaldehyde and Glyoxal

GSTDTAP

项目编号	1628530
	Field and Laboratory Study of Rural Volatile Organic Compounds (VOCs) Oxidation and Secondary Organic Aerosol (SOA) Formation Utilizing Measurements of Formaldehyde and Glyoxal
	Frank Keutsch
主持机构	Harvard University
项目开始年	2015
	2015-07-01
项目结束日期	2017-03-31
资助机构	US-NSF
项目类别	Standard Grant
项目经费	88997(USD)
国家	美国
语种	英语
英文摘要	Aerosol and ozone (O3) affect human health, the environment, and climate. Oxidation of volatile organic compounds (VOCs), in particular via the hydroxyl radical (OH), is directly coupled to the formation of O3 and it contributes to secondary organic aerosol (SOA), an important component of ambient aerosol. As part of the Southern Oxidant and Aerosol Study (SOAS) the principal investigators (PIs) planned comprehensive laboratory and field studies focused on improving the detailed mechanistic understanding of the processes controlling OH and isoprene, the most important VOC, especially in rural environments. A goal is to specifically study the anthropogenic impact on biogenic VOC (BVOC) oxidation and resulting SOA formation. The project addresses the following questions: 1) How well do current mechanisms represent VOC oxidation, especially for isoprene, and in particular under low-NO conditions? 2) How well do current mechanisms/models represent OH photochemistry in view of recent findings of potential measurement interferences? 3) What are the dominant mechanisms of anthropogenic influence on rural VOC oxidation and resulting O3 and SOA formation? This research is designed to contribute ultimately to improved prediction of secondary pollutant effects from precursor emissions, and an improved ability to mitigate the anthropogenic effects of emissions on climate, human health, and the environment. The PIs also will develop a Library of Organic Standards for Atmospheric Chemistry (OSAC) that will be a publicly available online database aimed at enabling improved access to starting materials for laboratory studies and standards for calibrations.
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/68111
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Frank Keutsch.Field and Laboratory Study of Rural Volatile Organic Compounds (VOCs) Oxidation and Secondary Organic Aerosol (SOA) Formation Utilizing Measurements of Formaldehyde and Glyoxal.2015.