DOI: 10.1016/j.atmosenv.2015.08.017
Scopus记录号: 2-s2.0-84949536771
论文题名: Chemical composition, sources and evolution processes of aerosol at an urban site in Yangtze River Delta, China during wintertime
作者: Zhang Y ; , Tang L ; , Yu H ; , Wang Z ; , Sun Y ; , Qin W ; , Chen W ; , Chen C ; , Ding A ; , Wu J ; , Ge S ; , Chen C ; , Zhou H ; -C
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123 起始页码: 339
结束页码: 349
语种: 英语
英文关键词: Components
; Evolution processes
; Haze
; PM1
; Sources
; YRD
Scopus关键词: Aerosols
; Balloons
; Chemical speciation
; Elementary particle sources
; Factorization
; Mass spectrometry
; Oxidation
; Urban growth
; Chemical compositions
; Components
; Evolution process
; Haze
; Meteorological influence
; Positive Matrix Factorization
; Secondary inorganic aerosol
; YRD
; Atmospheric movements
; ammonia
; chloride
; hydrocarbon
; nitrate
; organic compound
; sulfate
; aerosol
; aerosol composition
; aerosol formation
; biomass burning
; experimental study
; field method
; haze
; particle size
; particulate matter
; photochemistry
; pollutant source
; pollutant transport
; spatiotemporal analysis
; traffic emission
; urban area
; urban pollution
; winter
; aerosol
; air quality
; ambient air
; Article
; biomass
; chemical composition
; China
; comparative study
; controlled study
; cooking
; environmental monitoring
; environmental temperature
; haze
; particulate matter
; priority journal
; summer
; time series analysis
; urban area
; winter
; China
; Jiangsu
; Nanjing [Jiangsu]
; Yangtze 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: To investigate the composition, sources and evolution processes of submicron aerosol during wintertime, a field experiment was conducted during December 1-31, 2013 in urban Nanjing, a megacity in Yangtze River Delta of China. Non-refractory submicron aerosol (NR-PM1) species were measured with an Aerodyne Aerosol Chemical Speciation Monitor. NR-PM1 is dominated by secondary inorganic aerosol (55%) and organic aerosol (OA, 42%) during haze periods. Six OA components were identified by positive matrix factorization of the OA mass spectra. The hydrocarbon-like OA and cooking-related OA represent the local traffic and cooking sources, respectively. A highly oxidized factor related to biomass burning OA accounted for 15% of the total OA mass during haze periods. Three types of oxygenated OA (OOA), i.e., a less-oxidized OOA (LO-OOA), a more-oxidized OOA (MO-OOA), and a low-volatility OOA (LV-OOA), were identified. LO-OOA is likely associated with fresh urban secondary OA. MO-OOA likely represents photochemical products showing a similar diurnal cycle to nitrate with a pronounced noon peak. LV-OOA appears to be a more oxidized factor with a pronounced noon peak. The OA composition is dominated by secondary species, especially during haze events. LO-OOA, MO-OOA and LV-OOA on average account for 11%, (18%), 24% (21%) and 23% (18%) of the total OA mass for the haze (clean) periods respectively. Analysis of meteorological influence suggested that regional transport from the northern and southeastern areas of the city is responsible for large secondary and low-volatility aerosol formation. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81330
Appears in Collections: 气候变化事实与影响
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作者单位: Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, China; Jiangsu Environmental Monitoring Center, Nanjing, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Shanghai Academy of Environmental Sciences, Shanghai, China; Institute for Climate and Global Change Research and School of Atmospheric Sciences, Nanjing University, Nanjing, China
Recommended Citation:
Zhang Y,, Tang L,, Yu H,et al. Chemical composition, sources and evolution processes of aerosol at an urban site in Yangtze River Delta, China during wintertime[J]. Atmospheric Environment,2015-01-01,123