DOI: 10.1016/j.atmosenv.2014.11.003
Scopus记录号: 2-s2.0-84909994302
论文题名: Total sugars in atmospheric aerosols: An alternative tracer for biomass burning
作者: Scaramboni C ; , Urban R ; C ; , Lima-Souza M ; , Nogueira R ; F ; P ; , Cardoso A ; A ; , Allen A ; G ; , Campos M ; L ; A ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 100 起始页码: 185
结束页码: 192
语种: 英语
英文关键词: Aerosol
; Biomass burning marker
; Brazil
; Ethanol production
; Sugarcane
Scopus关键词: Aerosols
; Atmospheric chemistry
; Atmospheric thermodynamics
; Biomass
; Ethanol
; Potassium
; Sugar cane
; Sugars
; Agricultural fires
; Biomass-burning
; Brazil
; Chemical tracers
; Ethanol production
; Hydrophilic properties
; Information concerning
; Linear correlation
; Atmospheric aerosols
; carbohydrate
; levoglucosan
; potassium
; aerosol composition
; agroindustry
; biomass burning
; concentration (composition)
; ethanol
; fertilizer application
; industrial emission
; potassium
; sugar
; sugar cane
; tracer
; aerosol
; Article
; atmospheric deposition
; biomass burning
; Brazil
; concentration (parameters)
; fire
; harvest period
; night
; quantitative analysis
; Brazil
; Sao Paulo [Brazil]
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: Ambient aerosols were collected in an agro-industrial region of São Paulo State (Brazil) between May 2010 and February 2012 (n=87). The atmosphere of the study region is highly affected by the emissions of gases and particles from sugar and fuel ethanol production, because part of the area planted with sugarcane is still burned before manual harvesting. This work proposes the quantification of total sugars as an alternative chemical tracer of biomass burning, instead of levoglucosan. The quantification of total sugars requires a small area of a filter sample and a simple spectrophotometer, in contrast to the determination of levoglucosan, which is much more complex and time-consuming. Total sugars concentrations in the aerosol ranged from 0.28 to 12.5μgm-3, and (similarly to levoglucosan) the emissions were significantly higher at night and during the sugarcane harvest period, when most agricultural fires occur. The linear correlation between levoglucosan and total sugars (r=0.612) was stronger than between levoglucosan and potassium (r=0.379), which has previously been used as a biomass burning tracer. In the study region, potassium is used in fertilizers, and this, together with substantial soil dust resuspension, makes potassium unsuitable for use as a tracer. On average, ca. 40% of the total sugars was found in particles smaller than 0.49μm. By including data from previous work, it was possible to identify from 35 to 42% of the total sugars, with biomass burning making the largest contribution. The high solubility in water of these sugars means that determination of their concentrations could also provide important information concerning the hydrophilic properties of atmospheric aerosols. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82091
Appears in Collections: 气候变化事实与影响
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作者单位: Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil; Instituto de Química, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
Recommended Citation:
Scaramboni C,, Urban R,C,et al. Total sugars in atmospheric aerosols: An alternative tracer for biomass burning[J]. Atmospheric Environment,2015-01-01,100