DOI: 10.1016/j.atmosenv.2014.12.009
Scopus记录号: 2-s2.0-84916893544
论文题名: Characteristics and applications of size-segregated biomass burning tracers in China's Pearl River Delta region
作者: Zhang Z ; , Gao J ; , Engling G ; , Tao J ; , Chai F ; , Zhang L ; , Zhang R ; , Sang X ; , Chan C ; -Y ; , Lin Z ; , Cao J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 102 起始页码: 290
结束页码: 301
语种: 英语
英文关键词: Anhydrosugars
; Biomass combustion
; Potassium
; Size distribution
; Source-receptor study
Scopus关键词: Agricultural wastes
; Atmospheric movements
; Combustion
; Drought
; Health risks
; Particle size
; Potassium
; Rural areas
; Size distribution
; Smoke
; Urban growth
; Carbon
; Anhydrosugars
; Biomass burning emissions
; Biomass combustion
; Larger particle sizes
; Meteorological condition
; Non-sea-salt potassiums
; Pearl River Delta region
; Source-receptor
; Relative contribution
; Biomass
; levoglucosan
; mannosan
; polysaccharide
; potassium
; unclassified drug
; carbohydrate derivative
; carbon
; levoglucosan
; manganese
; mannosan
; potassium
; radioactive aerosol
; tracer
; atmospheric pollution
; biomass burning
; carbon emission
; combustion
; health risk
; particle size
; pollutant source
; size distribution
; smoke
; crop residue
; emission inventory
; potassium
; sugar
; tracer
; aerosol
; Article
; biomass burning
; biotechnological procedures
; carbon footprint
; chemical mass balance
; China
; combustion
; dry season
; meteorological phenomena
; model
; particle size
; plant residue
; positive matrix factorization
; river
; rural area
; season
; seasonal variation
; smoke
; softwood
; suburban area
; urban area
; wet season
; wood
; biomass production
; dry deposition
; ecological procedures
; fire ecology
; human
; particulate matter
; radiation measurement
; radioisotope distribution
; river ecosystem
; wetland
; China
; Guangdong
; Zhujiang Delta
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: Biomass burning activities in China are ubiquitous and the resulting smoke emissions may pose considerable threats to human health and the environment. In the present study, size-segregated biomass burning tracers, including anhydrosugars (levoglucosan (LG) and mannosan (MN)) and non-sea-salt potassium (nss-K+), were determined at an urban and a suburban site in the Pearl River Delta (PRD) region. The size distributions of biomass burning tracers were generally characterized by a unimodal pattern peaking in the particle size range of 0.44-1.0μm, except for MN during the wet season, for which a bimodal pattern (one in fine and one in coarse mode) was observed. These observed biomass burning tracers in the PRD region shifted towards larger particle sizes compared to the typical size distributions of fresh biomass smoke particles. Elevated biomass burning tracers were observed during the dry season when biomass burning activities were intensive and meteorological conditions favored the transport of biomass smoke particles from the rural areas in the PRD and neighboring areas to the sampling sites. The fine mode biomass burning tracers significantly correlated with each other, confirming their common sources. Rather high δLG/δMN ratios were observed at both sites, indicating limited influence from softwood combustion. High δnss-K+/δLG ratios further suggested that biomass burning aerosols in the PRD were predominately associated with burning of crop residues. Using a simplified receptor-oriented approach with an emission factor of 0.075 (LG/TC) obtained from several chamber studies, average contributions of biomass burning emissions to total carbon in fine particles were estimated to be 23% and 16% at the urban and suburban site, respectively, during the dry season. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82006
Appears in Collections: 气候变化事实与影响
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作者单位: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, China; Chinese Research Academy of Environmental Sciences, Beijing, China; Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan; Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, United States; Air Quality Research Division, Science Technology Branch, Environment Canada, Toronto, Canada; RCE-TEA, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Sun Yat-sen University, Guangzhou, China; Key Laboratory of Aerosol, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; IEK-8: Troposphäre, Forschungszentrum Jülich, Jülich, Germany
Recommended Citation:
Zhang Z,, Gao J,, Engling G,et al. Characteristics and applications of size-segregated biomass burning tracers in China's Pearl River Delta region[J]. Atmospheric Environment,2015-01-01,102