DOI: 10.1016/j.atmosres.2019.01.001
Scopus记录号: 2-s2.0-85059577787
论文题名: Mass size distribution of major monosaccharide anhydrides and mass contribution of biomass burning
作者: Blumberger Z.I. ; Vasanits-Zsigrai A. ; Farkas G. ; Salma I.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 220 起始页码: 1
结束页码: 9
语种: 英语
英文关键词: Galactosan
; Levoglucosan
; Mannosan
; Molecular marker
; MOUDI
; Wood burning
Scopus关键词: Aerodynamics
; Hardwoods
; Meteorological instruments
; Size distribution
; Galactosan
; Levoglucosan
; Mannosan
; Molecular marker
; MOUDI
; Wood burning
; Glucose
; aerosol composition
; biomass burning
; chemical compound
; concentration (composition)
; measurement method
; monosaccharide
; size distribution
; wood
; Budapest
; Hungary
英文摘要: Aerosol samples were collected by a MOUDI cascade impactor in central Budapest in winter 2017, and were analysed by GC–MS and AAS methods for major monosaccharide anhydrides, i.e. levoglucosan (LVG), mannosan (MAN) and galactosan (GAN), and for K, which are important chemical markers for biomass burning (BB) emissions. Their median atmospheric concentrations were 0.36 μg m −3 , 37 ng m −3 , 10.9 ng m −3 and 0.32 μg m −3 , respectively. Detailed mass size distributions were determined in an aerodynamic diameter range of 0.053–9.9 μm for all markers. There were 3 modes identified in the distributions of the monosaccharide anhydrides with typical mass median aerodynamic diameters (MMADs) and relative modal concentrations (RMCs) of 0.42 μm and 90%, 1.62 μm and up to 9%, and 0.11 μm and up to 9%, respectively. The modes were assigned to the condensation and droplet submodes (formed by splitting) of a dominant accumulation mode and to a minor accumulation mode, respectively. The former 2 modes were generated by BB, while the latter mode was explained by another source type with higher burning temperature than BB, which is likely lignite combustion. The size distributions of K also contained 3 modes with mean MMADs and RMCs of 0.40 μm and 78%, 0.16 μm and 12%, and 5.8 μm and 10%, respectively. The former 2 modes were assigned to a major and a minor accumulation mode similarly to the monosaccharide anhydrides, while the latter peak is a coarse mode. Levoglucosan was further utilised to estimate the PM 10 mass originating from BB, which yielded a mean relative contribution of 18%. This implies that BB represents a considerable or substantial source for particulate mass in the area. Concentration ratios among the monosaccharide anhydrides suggested that it is the wood burning that is the major form of BB, and that the relative share of softwood burnt to hardwood is around 46%. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122311
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Chemistry, Eötvös University, P.O. Box 32, Budapest, H-1518, Hungary; Air Quality Reference Center, Hungarian Meteorological Service, Gilice tér 39, Budapest, H-1181, Hungary
Recommended Citation:
Blumberger Z.I.,Vasanits-Zsigrai A.,Farkas G.,et al. Mass size distribution of major monosaccharide anhydrides and mass contribution of biomass burning[J]. Atmospheric Research,2019-01-01,220