DOI: 10.1016/j.atmosenv.2014.06.046
Scopus记录号: 2-s2.0-84903378892
论文题名: Analysis of semi-volatile materials (SVM) in fine particulate matter
作者: Salvador C ; M ; , Chou C ; C ; -K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 95 起始页码: 288
结束页码: 295
语种: 英语
英文关键词: Atmospheric aerosols
; Denuder
; FDMS-TEOM
; Urban air quality
Scopus关键词: Atmospheric aerosols
; Charcoal
; Instruments
; Denuders
; FDMS-TEOM
; Fine particulate matter
; Mass concentration
; Removal efficiencies
; Semi-volatile materials
; Urban air quality
; Urban environments
; Particles (particulate matter)
; charcoal
; magnesium oxide
; nitrate
; organic carbon
; semi volatile material
; unclassified drug
; volatile organic compound
; aerosol
; particulate matter
; speciation (chemistry)
; subtropical region
; urban atmosphere
; volatile element
; aerosol
; air quality
; analytical equipment
; article
; controlled study
; filter
; filter dynamic measurement tapered element oscillating microbalance system
; FRM filter
; health hazard
; particulate matter
; priority journal
; species differentiation
; Taiwan
; urban area
; wettability
; Taipei
; Taiwan
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: The mass fraction of semi-volatile materials (SVM) in fine particulate matter (PM2.5) was investigated at a subtropical urban aerosol observatory (TARO, 25.0 °N, 121.5 °E) in Taipei, Taiwan during August 2013. In particular, an integrated Denuder-FDMS-TEOM system was employed to study the effectiveness of the coupling of FDMS and TEOM instruments. The charcoal and MgO denuders used in this study performed a removal efficiency of 89 and 95% for positive interferences in OC and nitrate measurements, respectively, and did not induce a significant particle loss during the field campaign, suggesting that denuders should be considered as a standard device in PM2.5 instrumentation. Analysis on the mass concentration and speciation data found that, as a result of SVM loss, FRM-based measurement underestimated PM2.5 by 21% in our case. Coupling FDMS to TEOM significantly improved the bias in PM2.5 mass concentration from -25% to -14%. The negative bias in FDMS-TEOM was attributed to the failure of FDMS in recovering the mass of lost SVOMs in PM2.5. The results of this study highlight the significance of SVM in a subtropical urban environment, give a warning of underestimated health risk relevant to PM2.5 exposure, and necessitate further development of instrument and/or technique to provide accurate ambient levels of fine particulate matters. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81008
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Research Center for Environmental Changes, Academia Sinica, Taipei 11529, Taiwan; Earth System Science Program, Taiwan International Graduate Program, Academia Sinica, Taiwan; College of Earth Science, National Central University, Taoyuan, Taiwan
Recommended Citation:
Salvador C,M,, Chou C,et al. Analysis of semi-volatile materials (SVM) in fine particulate matter[J]. Atmospheric Environment,2014-01-01,95