DOI: 10.1016/j.atmosenv.2014.03.034
Scopus记录号: 2-s2.0-84897438469
论文题名: Sugar markers in aerosol particles from an agro-industrial region in Brazil
作者: Urban R ; C ; , Alves C ; A ; , Allen A ; G ; , Cardoso A ; A ; , Queiroz M ; E ; C ; , Campos M ; L ; A ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 90 起始页码: 106
结束页码: 112
语种: 英语
英文关键词: Agricultural impact
; Ethanol fuel
; Levoglucosan
; Sugar cane
Scopus关键词: Aerosols
; Biomass
; Ethanol fuels
; Harvesting
; Sugars
; Aerosol particles
; Agricultural impacts
; Average concentration
; Chemical compositions
; Ethanol fuel production
; Levoglucosan
; Lower troposphere
; Variable concentration
; Sugar cane
; alcohol
; arabinitol
; arabino 1,4 lactone
; arabinose
; carbohydrate
; erythrose
; fructose
; galactosan
; galactose
; glycerol
; levoglucosan
; lyxose
; maltose
; mannitol
; mannosan
; mannose
; ribitol
; ribose
; sorbitol
; sucrose
; sugar
; unclassified drug
; xylitol
; xylose
; aerosol
; biogenic emission
; biomarker
; biomass burning
; chemical composition
; concentration (composition)
; ethanol
; size distribution
; sugar cane
; troposphere
; aerosol
; article
; atmosphere
; biofuel production
; biomass
; Brazil
; chemical composition
; combustion
; harvest
; harvest period
; industrial area
; mass fragmentography
; particle size
; priority journal
; rural area
; smoke
; sugarcane
; troposphere
; 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: This work aimed to better understand how aerosol particles from sugar cane burning contribute to the chemical composition of the lower troposphere in an agro-industrial region of São Paulo State (Brazil) affected by sugar and ethanol fuel production. During a period of 21 months, we collected 105 samples and quantified 20 saccharides by GC-MS. The average concentrations of levoglucosan (L), mannosan (M), and galactosan (G) for 24-h sampling were 116, 16, and 11ngm-3 respectively. The three anhydrosugars had higher and more variable concentrations in the nighttime and during the sugar cane harvest period, due to more intense biomass burning practices. The calculated L/M ratio, which may serve as a signature for sugar cane smoke particles, was 9±5. Although the total concentrations of the anhydrosugars varied greatly among samples, the relative mass size distributions of the saccharides were reasonably constant. Emissions due to biomass burning were estimated to correspond to 69% (mass) of the sugars quantified in the harvest samples, whereas biogenic emissions corresponded to 10%. In the non-harvest period, these values were 44 and 27%, respectively, indicating that biomass burning is an important source of aerosol to the regional atmosphere during the whole year. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81271
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemistry, University of São Paulo, Ribeirão Preto, SP 14040-901, Brazil; Institute of Chemistry, São Paulo State University, Araraquara, SP 14800-900, Brazil; Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
Recommended Citation:
Urban R,C,, Alves C,et al. Sugar markers in aerosol particles from an agro-industrial region in Brazil[J]. Atmospheric Environment,2014-01-01,90