DOI: 10.1016/j.atmosenv.2014.05.051
Scopus记录号: 2-s2.0-84901488489
论文题名: Spatial variability of particle number concentrations and NOx in the Karlsruhe (Germany) area obtained with the mobile laboratory 'AERO-TRAM'
作者: Hagemann R ; , Corsmeier U ; , Kottmeier C ; , Rinke R ; , Wieser A ; , Vogel B
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 341
结束页码: 352
语种: 英语
英文关键词: Mobile measurements
; Particle number concentration
; Tramway
; Urban pollution
Scopus关键词: Air pollution control
; Boundary layers
; Nitrogen oxides
; Rural areas
; Spatial distribution
; Boundary layer stabilities
; Distribution of particles
; Mobile measurements
; Particle number concentration
; Stable stratification
; Tramway
; Urban agglomerations
; Urban pollutions
; Railroad rolling stock
; nitrogen oxide
; atmospheric pollution
; concentration (composition)
; nitrogen oxides
; particulate matter
; spatial distribution
; spatial variation
; train
; urban pollution
; wind velocity
; article
; atmospheric dispersion
; boundary layer
; boundary layer stability
; concentration (parameters)
; Germany
; industry
; particle number concentration
; priority journal
; rural area
; urban area
; velocity
; wind
; wind direction
; wind velocity
; Baden-Wurttemberg
; Germany
; Karlsruhe
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: For the first time in Germany, we obtained high-resolution spatial distributions of particle numbers and nitrogen oxides in an urban agglomeration using a tram system. In comparison to particle numbers the NOx concentration decreased much faster with a significantly steeper gradient when going from the inner city to the surrounding area. In case of NOx the decrease was 70% while for particle number concentration it was only 50%. We found an area in the rural surrounding with a second increase of particle numbers without simultaneous enhanced NOx levels. The source of the high particle numbers could be ascribed to industry emissions about 5-10km away. The mean spatial distribution of particle number concentration depended on wind direction, wind velocity and boundary layer stability. The dependency was particularly strong in the rural area affected by industrial emissions, where individual wind directions led to concentration differences of up to 25%. The particulate concentration was 40% higher during low wind velocities (1-5ms-1) than during high wind velocities (> 5ms-1). We observed similar findings for the impact of boundary layer stability on particle numbers concentration. Particle pollution was 40% higher for stable stratification compared to neutral or unstable cases. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80903
Appears in Collections: 气候变化事实与影响
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作者单位: Institute for Meteorology and Climate Research, Karlsruhe Institute of Technology, Postfach 3640, D-76021 Karlsruhe, Germany; Office for Environmental Protection of the city of Stuttgart, Section of Urban Climatology, Gaisburgstrae 4, Germany
Recommended Citation:
Hagemann R,, Corsmeier U,, Kottmeier C,et al. Spatial variability of particle number concentrations and NOx in the Karlsruhe (Germany) area obtained with the mobile laboratory 'AERO-TRAM'[J]. Atmospheric Environment,2014-01-01,94