DOI: 10.1016/j.atmosenv.2014.05.024
Scopus记录号: 2-s2.0-84901304946
论文题名: Measurements of nitrous acid (HONO) using ion drift-chemical ionization mass spectrometry during the 2009 SHARP field campaign
作者: Levy M ; , Zhang R ; , Zheng J ; , Zhang A ; L ; , Xu W ; , Gomez-Hernandez M ; , Wang Y ; , Olaguer E
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 231
结束页码: 240
语种: 英语
英文关键词: Aerosol chemistry
; HONO
; ID-CIMS
; Soot
Scopus关键词: Aerosols
; Ions
; Mass spectrometry
; Soot
; Troposphere
; Aerosol chemistry
; Detection sensitivity
; HONO
; ID-CIMS
; Ionization mass spectrometry
; Particle surface area
; Peak concentrations
; University of Houston
; Inorganic acids
; nitric oxide
; nitrous acid
; ozone
; sulfur hexafluoride
; aerosol
; ambient air
; atmospheric chemistry
; concentration (composition)
; ion
; mass spectrometry
; nitrous oxide
; ozone
; soot
; troposphere
; aerosol
; article
; humidity
; ion drift chemical ionization mass spectrometry
; mass spectrometry
; priority journal
; soot
; troposphere
; urban area
; Houston
; Texas
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: We have developed a novel approach for ambient measurements of nitrous acid (HONO) using ion drift-chemical ionization mass spectrometry (ID-CIMS). HONO is ionized using the sulfur hexafluoride anion, representing the first application of this reagent ion under humid tropospheric conditions. During the 2009 Study of Houston Atmospheric Radical Precursors (SHARP) Field Campaign, HONO measurements were continuously conducted from 1 May to 1 June at a site located on the campus of the University of Houston. Diurnally, HONO concentration accumulates in the late afternoon, reaches a nighttime maximum, and declines rapidly after sunrise. The nighttime HONO peaks show close correlations with the NO2 concentration, particle surface area, and soot mass concentration, indicating that the aerosol-phase chemistry likely contributes to HONO formation. A higher nighttime HONO peak concentration typically precedes a higher and earlier ozone peak concentration of the following day, by about 20ppb higher and four hours earlier than those with a lower preceding HONO peak concentration. Because of its high detection sensitivity and fast-responding time, the ID-CIMS method described in this work may greatly facilitate HONO detection under typical tropospheric conditions. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81310
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Sciences, Texas A and M University, College Station, TX 77843, United States; Department of Chemistry, Center for Atmospheric Chemistry and Environment, Texas A and M University, College Station, TX 77843, United States; School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; Houston Advanced Research Center, The Woodlands, TX 77381, United States
Recommended Citation:
Levy M,, Zhang R,, Zheng J,et al. Measurements of nitrous acid (HONO) using ion drift-chemical ionization mass spectrometry during the 2009 SHARP field campaign[J]. Atmospheric Environment,2014-01-01,94