DOI: 10.1016/j.atmosenv.2018.01.004
Scopus记录号: 2-s2.0-85041475679
论文题名: Hygroscopic properties of atmospheric particles emitted during wintertime biomass burning episodes in Athens
作者: Psichoudaki M ; , Nenes A ; , Florou K ; , Kaltsonoudis C ; , Pandis S ; N
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 178 起始页码: 66
结束页码: 72
语种: 英语
英文关键词: CCN
; Fireplace emissions
; Organic aerosol
; Urban air quality
Scopus关键词: Aerosols
; Air quality
; Atmospheric aerosols
; Biomass
; Chimneys
; Factorization
; Shape memory effect
; Silicon compounds
; Aerosol mass spectrometers
; Cloud condensation nuclei
; Hygroscopic properties
; Organic aerosol
; Organic particulate matters
; Positive Matrix Factorization
; Scanning mobility particle sizer
; Urban air quality
; Particles (particulate matter)
; aerosol
; air quality
; Article
; atmosphere
; biomass
; chemical composition
; fire
; particle size
; particulate matter
; priority journal
; surface property
; urban area
; wettability
; winter
; wood
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: This study explores the Cloud Condensation Nuclei (CCN) activity of atmospheric particles during intense biomass burning periods in an urban environment. During a one-month campaign in the center of Athens, Greece, a CCN counter coupled with a Scanning Mobility Particle Sizer (SMPS) and a high resolution Aerosol Mass Spectrometer (HR-AMS) were used to measure the size-resolved CCN activity and composition of the atmospheric aerosols. During the day, the organic fraction of the particles was more than 50%, reaching almost 80% at night, when the fireplaces were used. Positive Matrix Factorization (PMF) analysis revealed 4 factors with biomass burning being the dominant source after 18:00 until the early morning. The CCN-based overall hygroscopicity parameter κ ranged from 0.15 to 0.25. During the night, when the biomass burning organic aerosol (bbOA) dominated, the hygroscopicity parameter for the mixed organic/inorganic particles was on average 0.16. The hygroscopicity of the biomass-burning organic particles was 0.09, while the corresponding average value for all organic particulate matter during the campaign was 0.12. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82976
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Chemical Engineering Sciences, ICE/FORTH, Patras, Greece; Department of Chemical Engineering, University of Patras, Patras, Greece; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, United States; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, United States; Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, United States
Recommended Citation:
Psichoudaki M,, Nenes A,, Florou K,et al. Hygroscopic properties of atmospheric particles emitted during wintertime biomass burning episodes in Athens[J]. Atmospheric Environment,2018-01-01,178