气候变化领域集成服务门户(CCPortal): Measurements of Total OH Reactivity During CalNex-LA

CCPortal

DOI	10.1029/2020JD032988
	Measurements of Total OH Reactivity During CalNex-LA
	Hansen R.F.; Griffith S.M.; Dusanter S.; Gilman J.B.; Graus M.; Kuster W.C.; Veres P.R.; de Gouw J.A.; Warneke C.; Washenfelder R.A.; Young C.J.; Brown S.S.; Alvarez S.L.; Flynn J.H.; Grossberg N.E.; Lefer B.; Rappenglueck B.; Stevens P.S.
发表日期	2021
ISSN	2169897X
卷号	126 期号:11
英文摘要	Total OH reactivity was measured during the California Research at the Nexus of Air Quality and Climate Change field campaign at the Pasadena ground site using a turbulent flow tube reactor with laser-induced fluorescence detection of the OH radical. Collocated measurements of volatile organic compounds (VOCs), inorganic species, and meteorological parameters were made and used to calculate the total OH reactivity, which was then compared to the measured values. An analysis of the OH reactivity measurements finds that although the measured reactivity correlated well with the calculated reactivity, the measurements were consistently greater than the calculations for all times during the day, with an average missing OH reactivity of 8–10 s−1, accounting for approximately 40% of the measured total OH reactivity. An analysis of correlations with both anthropogenic tracers of combustion and oxygenated VOCs as well as air trajectories during the campaign suggest that the missing OH reactivity was likely due to a combination of both unmeasured local emissions and unmeasured oxidation products transported to the site. Approximately 50% of the missing OH reactivity may have been due to emissions of unmeasured volatile chemical products, such as pesticides, cleaning agents, and personal care products. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	hydroxyl radical; OH reactivity
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185176
作者单位	Department of Chemistry, Indiana University, Bloomington, IN, United States; Now at Department of Chemistry, Quinnipiac University, Hamden, CT, United States; O'Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, United States; Now at Department of Atmospheric Sciences, National Central University, Taoyuan, Taiwan; Now at IMT Lille Douai, Université de Lille, SAGE—Sciences de l'Atmosphère et Génie de l'Environnement, Lille, France; Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Now at Department of Atmospheric and Cryospheric Sciences, University of Innsbruck, Innsbruck, Austria; Department of Chemistry, University of Colorado, Boulder, CO, United States; Now at Department of Chemistry, York University, Toronto, Canada; Department of Earth and Atmospheric Sciences, University of Houston, Houston,...
推荐引用方式 GB/T 7714	Hansen R.F.,Griffith S.M.,Dusanter S.,et al. Measurements of Total OH Reactivity During CalNex-LA[J],2021,126(11).
APA	Hansen R.F..,Griffith S.M..,Dusanter S..,Gilman J.B..,Graus M..,...&Stevens P.S..(2021).Measurements of Total OH Reactivity During CalNex-LA.Journal of Geophysical Research: Atmospheres,126(11).
MLA	Hansen R.F.,et al."Measurements of Total OH Reactivity During CalNex-LA".Journal of Geophysical Research: Atmospheres 126.11(2021).