DOI: 10.1016/j.atmosenv.2015.05.003
Scopus记录号: 2-s2.0-84928884248
论文题名: Chemical characteristics of submicron aerosol particles during a long-lasting haze episode in Xiamen, China
作者: Yan J ; , Chen L ; , Lin Q ; , Li Z ; , Chen H ; , Zhao S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 113 起始页码: 118
结束页码: 126
语种: 英语
英文关键词: Aerosol particles
; Air pollution
; Chemical composition
; Haze
; PM1
; Size distribution
Scopus关键词: Aerosols
; Pollution
; Size distribution
; Aerodyne aerosol mass spectrometer
; Aerosol particles
; Atmospheric visibility
; Chemical characteristic
; Chemical compositions
; Haze
; Positive Matrix Factorization
; Vacuum aerodynamic diameters
; Air pollution
; ammonia
; hydrocarbon
; nitrogen
; sulfate
; accumulation
; aerodynamics
; aerosol
; air mass
; air quality
; atmospheric pollution
; chemical composition
; concentration (composition)
; haze
; oxidation
; particle size
; particulate matter
; pollutant transport
; size distribution
; traffic emission
; visibility
; aerosol
; air pollution
; air quality
; air sampling
; airborne particle
; analytic method
; Article
; atmospheric pressure
; chemical composition
; China
; concentration (parameters)
; dispersion
; exhaust gas
; haze
; human
; humidity
; mass spectrometer
; mass spectrometry
; meteorology
; motor vehicle
; oxidation
; particulate matter
; physical parameters
; Positive Matrix Factorization
; priority journal
; submicron aerosol particle
; visibility
; water content
; China
; Fujian
; Xiamen
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: A long-lasting haze episode has been first observed with a mean atmospheric visibility of 8.6km since last decades over Xiamen. An Aerodyne Aerosol Mass Spectrometer (AMS) was deployed to obtain the size-resolved chemical composition of non-refractory submicron particles (NR-PM1 ) at 10min resolution. Characteristics of aerosol particles in haze days have been analyzed and compared to in clear days and rainy days. The mean concentration of PM2.5 was about 213.3μgm-3 (±16.9μgm-3) during haze days, which was about 4 times higher than during clear days. Organics, sulfate and ammonium were the major components in these supper fine particles, accounting for 37.2% (±0.11), 28.7% (±0.11) and 12.0% (±0.11), respectively, during haze days. The size distributions of aerosol species were characterized by a major accumulation mode peaking at a vacuum aerodynamic diameter of 390nm during clear days, 427nm during rainy days and 579nm during haze days. High concentrations of SO4 2-, NO3 - and NH4 + were observed and the average values of sulfur oxidation ratios (SOR) and nitrogen oxidation ratios(NOR) were up to 0.56 (±0.17) and 0.25 (±0.11) during haze days. Positive Matrix Factorization (PMF) was used to identity a hydrocarbon-like organic aerosol (HOA) and an oxygenated organic aerosol (OOA) component. It showed that OOA components were probably representative of SOA in Xiamen. The average value of NO3 -/SO4 2- was 0.28 during clear days, 0.20 during rainy days and 0.59 during haze days, indicating that pollutants from local vehicle exhaust sources were accumulated in haze days. During haze days, the main air mass (accounted for 81%) transported from the northeast of China, implying that the haze pollution was partly influenced by the pollutants transported from heavy haze areas in China. Pollution accumulated by local processes, secondary aerosol formation and the stagnation meteorological atmosphere dominated the formation of the haze event. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81698
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Global Change and Marine-Atmospheric Chemistry, Third Institute of Oceanography, SOA, Xiamen, China
Recommended Citation:
Yan J,, Chen L,, Lin Q,et al. Chemical characteristics of submicron aerosol particles during a long-lasting haze episode in Xiamen, China[J]. Atmospheric Environment,2015-01-01,113