globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2013.10.008
Scopus记录号: 2-s2.0-84888774446
论文题名:
Simultaneous airborne nitric acid and formic acid measurements using a chemical ionization mass spectrometer around the UK: Analysis of primary and secondary production pathways
作者: Le Breton M; , Bacak A; , Muller J; B; A; , Xiao P; , Shallcross B; M; A; , Batt R; , Cooke M; C; , Shallcross D; E; , Bauguitte S; J; -B; , Percival C; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83
起始页码: 166
结束页码: 175
语种: 英语
英文关键词: CIMS ; Formic acid ; Hydroxyl radical ; Nitric acid
Scopus关键词: Chemical analysis ; Iodine ; Ionization ; Mass spectrometers ; Nitric acid ; Ozone ; Research aircraft ; Acid concentrations ; Chemical ionization ; CIMS ; Hydroxyl radicals ; Photochemical production ; Secondary production ; Simultaneous measurement ; Trajectory modeling ; Formic acid ; alkene derivative ; formic acid ; nitric acid ; nitric oxide ; oxygen ; propylene ; flight ; formic acid ; hydroxyl radical ; ionization ; nitric acid ; research ; secondary production ; spectrometer ; trajectory ; aircraft ; article ; boundary layer ; controlled study ; mass spectrometry ; oxidation ; ozonolysis ; plume ; priority journal ; United Kingdom ; United Kingdom
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: The first simultaneous measurements of formic and nitric acid mixing ratios around the United Kingdom were measured on the FAAM BAe-146 research aircraft with a chemical ionization mass spectrometer using I- reagent ions at 0.8Hz. Analysis of the whole dataset shows that formic acid and nitric acid are positively correlated as illustrated by other studies (e.g. Veres etal., 2011). However, initial evidence indicates a prominent direct source of formic acid and also a significant source when O3 levels are high, suggesting the importance of the ozonolysis of 1-alkenes. A trajectory model was able to reproduce the formic acid concentrations by both the inclusion of a primary vehicle source and production via ozonolysis of propene equivalent 1-alkene levels. Inspection of data archives implies these levels of 1-alkene are possible after 11am, but formic acid and nitric acid plumes early in the flight are too high for the model to replicate. These data show the relationship between nitric acid and formic acid cannot solely be attributed to related photochemical production. The simultaneous measurement of HCOOH and HNO3 has been implemented to estimate OH levels along the flight track assuming a relationship between formic and nitric acid in photochemical plumes and a constant source of 1-alkene. © 2013 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80867
Appears in Collections:气候变化事实与影响

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作者单位: The Centre for Atmospheric Science, The School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Simon Building, Brunswick Street, Manchester, M13 9PL, United Kingdom; School of Chemistry, The University of Bristol, Cantock's Close BS8 1TS, United Kingdom; Facility for Airborne Atmospheric Measurements (FAAM), Cranfield University, Building 125, Cranfield, Bedford, MK43 0AL, United Kingdom; Met. Office, FitzRoy Road, Exeter, Devon, EX1 3PB, United Kingdom

Recommended Citation:
Le Breton M,, Bacak A,, Muller J,et al. Simultaneous airborne nitric acid and formic acid measurements using a chemical ionization mass spectrometer around the UK: Analysis of primary and secondary production pathways[J]. Atmospheric Environment,2014-01-01,83
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