DOI: 10.1016/j.atmosenv.2014.04.002
Scopus记录号: 2-s2.0-84898632057
论文题名: Influence of trans-boundary biomass burning impacted air masses on submicron particle number concentrations and size distributions
作者: Betha R ; , Zhang Z ; , Balasubramanian R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 92 起始页码: 9
结束页码: 18
语种: 英语
英文关键词: Backward trajectories
; Haze
; New particle formation
; Particle size distributions
; Submicron particles
Scopus关键词: Biomass
; Particle size analysis
; Size distribution
; Air trajectories
; Backward trajectory
; Biomass-burning
; Haze
; New particle formation
; Primary particles
; Sub-micron particles
; Sumatra , Indonesia
; Atmospheric movements
; peat
; air mass
; air quality
; article
; atmosphere
; biomass burning
; boundary layer
; environmental aspects and related phenomena
; fire
; haze
; Indonesia
; meteorological phenomena
; particle number concentration
; particle size
; priority journal
; Singapore
; traffic
; weight, mass and size
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: Submicron particle number concentration (PNC) and particle size distribution (PSD) in the size range of 5.6-560nm were investigated in Singapore from 27 June 2009 through 6 September 2009. Slightly hazy conditions lasted in Singapore from 6 to 10 August. Backward air trajectories indicated that the haze was due to the transport of biomass burning impacted air masses originating from wild forest and peat fires in Sumatra, Indonesia. Three distinct peaks in the morning (08:00-10:00), afternoon (13:00-15:00) and evening (16:00-20:00) were observed on a typical normal day. However, during the haze period no distinct morning and afternoon peaks were observed and the PNC (39,775±3741cm-3) increased by 1.5 times when compared to that during non-haze periods (26,462±6017). The morning and afternoon peaks on the normal day were associated with the local rush hour traffic while the afternoon peak was induced by new particle formation (NPF). Diurnal profiles of PNCs and PSDs showed that primary particle peak diameters were large during the haze (60nm) period when compared to that during the non-haze period (45.3nm). NPF events observed in the afternoon period on normal days were suppressed during the haze periods due to heavy particle loading in atmosphere caused by biomass burning impacted air masses. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81123
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, National University of Singapore (NUS), 1 Engineering Drive 2, E1A-07-03, Singapore 117576, Singapore; Singapore-MIT Alliance for Research and Technology (SMART), Centre for Environmental Sensing and Modeling (CENSAM), Singapore
Recommended Citation:
Betha R,, Zhang Z,, Balasubramanian R. Influence of trans-boundary biomass burning impacted air masses on submicron particle number concentrations and size distributions[J]. Atmospheric Environment,2014-01-01,92