DOI: 10.1016/j.atmosenv.2013.09.039
Scopus记录号: 2-s2.0-84887261746
论文题名: Spatial and seasonal variability of measured anthropogenic non-methane hydrocarbons in urban atmospheres: Implication on emission ratios
作者: Boynard A ; , Borbon A ; , Leonardis T ; , Barletta B ; , Meinardi S ; , Blake D ; R ; , Locoge N
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 82 起始页码: 258
结束页码: 267
语种: 英语
英文关键词: Composition
; Megacity
; Sources
; Vehicle exhaust
; VOC
Scopus关键词: Ambient concentrations
; Continuous measurements
; Emission inventories
; Megacities
; Non-methane hydrocarbons
; Seasonal variability
; Vehicle exhaust emissions
; Vehicle exhausts
; Acetylene
; Benzene
; Chemical analysis
; Combustion
; Elementary particle sources
; Lighting
; Methane
; Paraffins
; Volatile organic compounds
; Industrial emissions
; acetylene
; acetylene derivative
; alkene derivative
; benzene derivative
; gasoline
; hydrocarbon
; acetylene
; combustion
; data set
; emission inventory
; exhaust emission
; megacity
; nonmethane hydrocarbon
; summer
; volatile organic compound
; article
; atmosphere
; chemical composition
; combustion
; environmental monitoring
; observational study
; priority journal
; seasonal variation
; summer
; urban area
; winter
; Alsace
; Bas Rhin
; Bouches du Rhone
; France
; Grenoble
; Ile de France
; Isere
; Marseilles
; Paris
; Provence-Alpes-Cote d'Azur
; Rhone-Alpes
; Strasbourg
; Ville de Paris
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: Continuous measurements of a wide range of non-methane hydrocarbons (NMHC) have been performed since 2001 in Paris megacity and three French medium-sized cities (Grenoble, Marseille, and Strasbourg). After a careful verification of the data measured, the ambient concentrations are used to analyze the spatial and seasonal variability of the anthropogenic NMHC and determine the present NMHC emission ratios relative to acetylene, a useful metric to evaluate and constraint emission inventories. We show that NMHC urban composition is consistent between all cities with no industrial influence and characteristic of the urban emission mixtures, which are mostly dominated by vehicle exhaust emissions. In winter, the urban NMHC composition generally shows an enhancement in combustion-derived products (alkenes, acetylene), C2-C3 alkanes and benzene, which presumes seasonal changes in emission ratio values. Present emission ratios of NMHC relative to acetylene are determined in Paris and Strasbourg both in summer and winter. They generally compare within a factor of two except for C7-C9 aromatics in Paris. On a seasonal basis, summertime emission ratios are three times higher than wintertime ones while they stay constant for combustion derived product (alkenes) and benzene. The unburned gasoline fraction (alkanes and C7-C9 aromatics) shows the maximum difference up to a factor of seven. These findings suggest that the emission ratios reflect seasonal changes in emissions and can be a useful metric to constraint temporally resolved emission inventories at different time of the year. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80819
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO, United States; Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), CNRS, UMR 7583, IPSL, University of Paris Est Créteil (UPEC) and Paris Diderot (UPD), Créteil, France; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; NOAA Earth System Research Laboratory, Boulder, CO, United States; Université Lille Nord de France, F-59500 Lille, France; Department of Chemistry and Environment, Central Laboratory of Air Quality Survey (LCSQA), Mines Douai, F-59508 Douai, France; Department of Chemistry, University of California-Irvine, Irvine, CA, United States; Laboratoire Atmosphéres, Observations Spatiales (LATMOS), IPSL, CNRS, UMR, Milieux, 8190, France
Recommended Citation:
Boynard A,, Borbon A,, Leonardis T,et al. Spatial and seasonal variability of measured anthropogenic non-methane hydrocarbons in urban atmospheres: Implication on emission ratios[J]. Atmospheric Environment,2014-01-01,82