DOI: 10.1016/j.atmosenv.2014.09.041
Scopus记录号: 2-s2.0-84907256459
论文题名: Estimation of unidentified non-methane hydrocarbons in urban air based on highly correlated compound pairs
作者: de Blas M ; , Go´mez M ; C ; , Navazo M ; , Alonso L ; , Durana N ; , Iza J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 98 起始页码: 629
结束页码: 639
语种: 英语
英文关键词: Atmospheric reactivity
; Non-methane hydrocarbons
; Ozone precursors
; Urban air quality
Scopus关键词: Highly-correlated
; Non-methane hydrocarbons
; Ozone precursors
; Urban air
; Urban air quality
; hydrocarbon
; nonmethane hydrocarbon
; ozone
; unclassified drug
; air quality
; atmospheric chemistry
; correlation
; data set
; database
; environmental monitoring
; estimation method
; hydrocarbon
; methane
; mixing ratio
; ozone
; urban area
; air pollution
; air pollution indicator
; air quality
; analytic method
; Article
; chemical composition
; gas chromatography
; reliability
; urban area
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: Gas Chromatography coupled with Flame Ionization Detector (GC-FID) is used worldwide for non-methane hydrocarbons' (NMHCs) monitoring. Being a non-selective detector, identification and coelution problems may hamper the reliability of data. An estimation method was developed, based on the correlation of easily measured NMHCs with those unknowns. Correlations were calculated from data obtained with a Gas Chromatograph coupled with a Mass Spectrometer Detector (GC-MSD) after gathering more than 1500 hourly mixing ratio data of 67 NMHCs. The method was developed and validated for an urban area but it may be adapted and applied to other locations. Now it is possible to estimate mixing ratios of some important ozone precursors previously not resolved with the GC-FID, such as 2,2,4-trimethylpentane and 1,2,3-trimethylbenzene. As a result, a six year-long database was enlarged by 34% allowing for a more accurate calculation of the total reactivity and NMHCs' ozone forming potential. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80612
Appears in Collections: 气候变化事实与影响
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作者单位: Chemical and Environmental Engineering Department, University College of Technical Mining and Civil Engineering, University of the Basque Country UPV/EHU, Rafael Moreno 'Pitxitxi' 2, Bilbao, Spain; Chemical and Environmental Engineering Department, School of Engineering, University of the Basque Country UPV/EHU, Alameda de Urquijo s/n, Bilbao, Spain
Recommended Citation:
de Blas M,, Go´mez M,C,et al. Estimation of unidentified non-methane hydrocarbons in urban air based on highly correlated compound pairs[J]. Atmospheric Environment,2014-01-01,98