DOI: 10.1016/j.atmosenv.2014.03.010
Scopus记录号: 2-s2.0-84895969856
论文题名: Quantitative determination of the biomass-burning contribution to atmospheric carbonaceous aerosols in Daejeon, Korea, during the rice-harvest period
作者: Jung J ; , Lee S ; , Kim H ; , Kim D ; , Lee H ; , Oh S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 642
结束页码: 650
语种: 英语
英文关键词: Biomass burning
; Elemental carbon
; Galactosan
; Levoglucosan
; Mannosan
; Organic carbon
; Potassium
Scopus关键词: Agricultural wastes
; Atmospheric aerosols
; Carbon
; Harvesting
; Incineration
; Organic carbon
; Potassium
; Regression analysis
; Soil pollution
; Biomass-burning
; Elemental carbon
; Galactosan
; Levoglucosan
; Mannosan
; Biomass
; carbon
; levoglucosan
; organic carbon
; sodium chloride
; aerosol
; biomass burning
; crop residue
; harvesting
; organic carbon
; potassium
; quantitative analysis
; rice
; sea salt
; tracer
; article
; atmosphere
; biomass
; biomass burning
; burn
; grass
; harvest period
; Korea
; plant residue
; priority journal
; regression analysis
; rice
; suburban area
; South Korea
; Taejon [South Korea]
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: To investigate the impact of biomass-burning emissions on atmospheric carbonaceous aerosols, the biomass burning tracers; levoglucosan, mannonsan, galactosan, and K+ were measured at a suburban site in Daejeon, Korea, during the rice-harvest period, during the fall, 2012. The emissions of K+ from biomass burning (K+ _BB) were estimated by subtracting sea-salt K+ and soil K+ concentrations from measured K+ concentrations. Regression analysis of levoglucosan and K+ _BB reveals that K+ _BB alone is not suitable as a biomass-burning tracer in the Daejeon atmosphere, especially when the biomass-burning contribution is low. Levoglucosan to K+ _BB ratios during the study period ranged from 0.40 to 1.39, with an average of 0.89±0.30, whereas levoglucosan to mannosan ratios ranged from 4.61 to 15.45, with an average of 6.70±2.69. The ratios of levoglucosan to mannosan, K+, organic carbon (OC), and elemental carbon (EC) show that biomass-burning aerosols in the Daejeon atmosphere during the rice-harvest period are emitted mainly from crop residue, grass, and leaf burnings. The contributions of biomass-burning emissions to OC and EC concentrations were 45%±12% and 12%±7.3%, respectively, indicating that a large fraction of OC was emitted from biomass burning. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81004
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Gas Analysis, Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea; Department of Environmental Engineering, Chungnam National University, Daejeon 305-764, South Korea; Department of Chemistry, Hannam University, Daejeon 305-811, South Korea
Recommended Citation:
Jung J,, Lee S,, Kim H,et al. Quantitative determination of the biomass-burning contribution to atmospheric carbonaceous aerosols in Daejeon, Korea, during the rice-harvest period[J]. Atmospheric Environment,2014-01-01,89