DOI: 10.1016/j.atmosenv.2017.09.011
Scopus记录号: 2-s2.0-85029391268
论文题名: Observations of biomass burning tracers in PM2.5 at two megacities in North China during 2014 APEC summit
作者: Zhang Z ; , Gao J ; , Zhang L ; , Wang H ; , Tao J ; , Qiu X ; , Chai F ; , Li Y ; , Wang S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 169 起始页码: 54
结束页码: 64
语种: 英语
英文关键词: Atmospheric aerosols
; Biomass burning sources
; Emission controls
; Fine particulate matter
; Source-apportionment analysis
Scopus关键词: Aerosols
; Agricultural wastes
; Air quality
; Atmospheric aerosols
; Crops
; Emission control
; Factorization
; Housing
; Light extinction
; Particles (particulate matter)
; Urban growth
; Biomass burning emissions
; Biomass-burning
; Fine particulate matter
; Positive Matrix Factorization
; Regression relationship
; Residential wood burning
; Source apportionment
; Water-soluble potassium
; Biomass
; carbon
; levoglucosan
; mannosan
; tracer
; unclassified drug
; aerosol
; air quality
; Asian Pacific Economic Cooperation Forum
; biomass burning
; concentration (composition)
; crop residue
; emission control
; megacity
; particulate matter
; seasonal variation
; source apportionment
; tracer
; urban site
; air pollution control
; air quality
; Article
; biomass production
; China
; combustion
; concentration (parameters)
; heat
; light
; model
; particle size
; plant residue
; priority journal
; season
; simulation
; Beijing [China]
; China
; China
; Hebei
; Shijiazhuang
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 evaluate the effectiveness of biomass burning control measures on PM2.5 reduction, day- and nighttime PM2.5 samples were collected at two urban sites in North China, one in Beijing (BJ) and the other in Shijiazhuang (SJZ), during the 2014 Asia-Pacific Economic Cooperation (APEC) summit. Typical biomass burning aerosol tracers including levoglucosan (LG), Mannosan (MN), and water-soluble potassium (K+), together with other water-soluble ions and carbonaceous species were determined. The levels of biomass burning tracers dropped dramatically during the APEC period when open biomass burning activities were well controlled in North China, yet they increased sharply to even higher levels during the post-APEC period. Distinct linear regression relationships between LG and MN were found with lower LG/MN ratios from periods with much reduced open biomass burning activities. This was likely resulted from the reduced open crop residues burning and increased residential wood burning emissions, as was also supported by the simultaneous decrease in K+/LG ratio. The positive matrix factorization and air quality model simulation analyses suggested that PM2.5 concentration produced from biomass burning sources was reduced by 22% at BJ and 46% at SJZ during the APEC period compared to pre-APEC period, although they increased to higher levels after APEC mainly due to increased residential biomass burning emissions in winter heating season. Biomass burning was also found to be the most important contributor to carbonaceous species that might cause significant light extinction in this region. This study not only suggested implementing biomass burning controls measures were helpful to reduce PM2.5 in North China, but also pointed out both open crop residues burning and indoor biomass burning activities could make substantial contributions to PM2.5 and its major components in urban areas in North China. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82462
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China; South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, China; Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, Canada; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing, China; School of Environment, Tsinghua University, Beijing, China; Meteorological Observation Center, China Meteorological Administration, Beijing, China
Recommended Citation:
Zhang Z,, Gao J,, Zhang L,et al. Observations of biomass burning tracers in PM2.5 at two megacities in North China during 2014 APEC summit[J]. Atmospheric Environment,2017-01-01,169