DOI: 10.1016/j.atmosenv.2013.10.029
Scopus记录号: 2-s2.0-84890042839
论文题名: Importance of direct anthropogenic emissions of formic acid measured by a chemical ionisation mass spectrometer (CIMS) during the Winter ClearfLo Campaign in London, January 2012
作者: Bannan T ; J ; , Bacak A ; , Muller J ; B ; A ; , Booth A ; M ; , Jones B ; , Le Breton M ; , Leather K ; E ; , Ghalaieny M ; , Xiao P ; , Shallcross D ; E ; , Percival C ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 301
结束页码: 310
语种: 英语
英文关键词: CIMS
; ClearfLo
; Formic acid
; Troposphere
Scopus关键词: Ionization
; Mass spectrometers
; Troposphere
; Anthropogenic emissions
; CIMS
; ClearfLo
; Emission sources
; Limit of detection
; Northern Hemispheres
; Positive correlations
; Secondary sources
; Formic acid
; formic acid
; anthropogenic source
; atmospheric pollution
; carbon monoxide
; emission
; formic acid
; ionization
; nitrogen oxides
; numerical model
; spectrometer
; trace gas
; troposphere
; article
; calibration
; chemical ionisation mass spectrometer
; exhaust gas
; limit of detection
; mass spectrometer
; Northern Hemisphere
; priority journal
; United Kingdom
; England
; London [England]
; 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: Formic acid, an ubiquitous trace gas in the atmosphere, was measured using a chemical ionisation mass spectrometer (CIMS) during the winter ClearfLo campaign in London, 2012. Daily calibrations of formic acid gave sensitivities of 3 ion counts s-1pptv-1 for the complete campaign and a limit of detection of 2ppt. No correlation with nitric acid was observed, R2 of 0.137, indicating no significant secondary source of formic acid. However, a strong positive correlation with NOx, CO, and production in line with rush hour periods indicated a direct anthropogenic emission of formic acid from vehicle emissions. Peaks of 6.7ppb of formic acid were observed with a mean of 610ppt. Global models indicated that this emission source dominates in the northern hemisphere where global models underestimate formic acid most significantly, thus increasing the accuracy of modelling of global formic acid emissions. © 2013. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80993
Appears in Collections: 气候变化事实与影响
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作者单位: Centre for Atmospheric Science, School of Earth, Atmospheric and Environmental Science, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom; Biogeochemistry Research Centre, School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
Recommended Citation:
Bannan T,J,, Bacak A,et al. Importance of direct anthropogenic emissions of formic acid measured by a chemical ionisation mass spectrometer (CIMS) during the Winter ClearfLo Campaign in London, January 2012[J]. Atmospheric Environment,2014-01-01,83