DOI: 10.1016/j.atmosenv.2014.01.062
Scopus记录号: 2-s2.0-84902376425
论文题名: Small-scale spatial variations of gaseous air pollutants - A comparison of path-integrated and in situ measurement methods
作者: Ling H ; , Schäfer K ; , Xin J ; , Qin M ; , Suppan P ; , Wang Y
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 92 起始页码: 566
结束页码: 575
语种: 英语
英文关键词: Air quality
; DOAS
; Meteorological parameters
; Traffic-related emissions
; Urban environment
Scopus关键词: Air quality
; Mixing
; Sulfur dioxide
; Chemical transformations
; Differential optical absorption spectroscopy
; DOAS
; Emission source strength
; In-situ instruments
; Meteorological parameters
; Traffic-related emissions
; Urban environments
; Absorption spectroscopy
; nitric oxide
; nitrogen dioxide
; ozone
; sulfur dioxide
; air quality
; atmospheric convection
; atmospheric pollution
; comparative study
; in situ measurement
; mixing ratio
; traffic emission
; urban atmosphere
; air pollutant
; air pollution indicator
; air quality
; air quality standard
; article
; atmospheric dispersion
; circadian rhythm
; comparative study
; exhaust gas
; meteorological phenomena
; priority journal
; spatial analysis
; urban area
; Beijing [China]
; China
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: Traffic emissions are a very important factor in Beijing's urban air quality. To investigate small-scale spatial variations in air pollutants, a campaign was carried out from April 2009 through March 2011 in Beijing. DOAS (differential optical absorption spectroscopy) systems and in situ instruments were used. Atmospheric NO, NO2, O3 and SO2 mixing ratios were monitored. Meanwhile, HCHO mixing ratios were measured by two different DOAS systems. Diurnal variations of these mixing ratios were analysed. Differences between the path-integrated and in situ measurements were investigated based on the results from the campaign. The influences of different weather situations, dilution conditions and light-path locations were investigated as well. The results show that the differences between path-integrated and in situ mixing ratios were affected by combinations of emission source strengths, weather conditions, chemical transformations and local convection. Path-integrated measurements satisfy the requirements of traffic emission investigations better than in situ measurements. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80927
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS), Beijing 100029, China; Institute of Meteorology and Climate Research, Department of Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen 82467, Germany; Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics (AIOFM), Chinese Academy of Sciences (CAS), Hefei 230031, China
Recommended Citation:
Ling H,, Schäfer K,, Xin J,et al. Small-scale spatial variations of gaseous air pollutants - A comparison of path-integrated and in situ measurement methods[J]. Atmospheric Environment,2014-01-01,92