DOI: 10.1016/j.atmosres.2018.02.025
Scopus记录号: 2-s2.0-85043470705
论文题名: Analyses of biomass burning contribution to aerosol in Zhengzhou during wheat harvest season in 2015
作者: Chen H. ; Yin S. ; Li X. ; Wang J. ; Zhang R.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 207 起始页码: 62
结束页码: 73
语种: 英语
英文关键词: Biomass burning
; Levoglucosan
; Wheat straw
Scopus关键词: Aerosols
; Chemical analysis
; Combustion
; Harvesting
; Back trajectory analysis
; Biomass burning emissions
; Biomass-burning
; Chemical composition analysis
; Levoglucosan
; Meteorological condition
; Spatial and temporal variation
; Wheat straws
; Biomass
; aerosol
; aerosol composition
; biomass burning
; harvesting
; particulate matter
; spatial variation
; suburban area
; temporal variation
; wheat
; China
; Henan
; Zhengzhou
; Triticum aestivum
英文摘要: Ambient PM2.5 samples were collected in suburban area of Zhengzhou, China to investigate the impact of straw open burning on local aerosol during wheat harvest season in 2015. Secondary formation and accumulation processes were found under unfavorable meteorological conditions through the chemical composition analysis in PM2.5. And spatial and temporal variation of the agricultural activities were observed through MODIS fire spots data combined with back trajectory analysis. Results showed elevated levoglucosan was affected directly during biomass burning episodes and transportation periods. In order to estimate the contribution, levoglucosan/K+ combined with levoglucosan/mannosan were analyzed to identify biomass burning sources. And the results showed that levoglucosan were emitted from straw burning mixing with softwood combustion during the study period, emphasizing that wood combustion for households was non-negligible which consists part of the levoglucosan background in Zhengzhou aerosol. Based on emission factors (levoglucosan/OC or levoglucosan/PM2.5) summarized by laboratory simulation experiments, the study period was divided into 7 depending on the former characteristics to estimate the contribution of biomass burning to aerosol, and the average contributions of biomass burning emission to OC and PM2.5 were 46% and 13% relatively, indicating biomass burning have a significant impact on ambient aerosol levels during harvest season. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108892
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China; State Key Joint Laboratory of Environmental Simulation and Pollution Control, Department of Environmental Science, Peking University, Beijing, 100871, China
Recommended Citation:
Chen H.,Yin S.,Li X.,et al. Analyses of biomass burning contribution to aerosol in Zhengzhou during wheat harvest season in 2015[J]. Atmospheric Research,2018-01-01,207