DOI: 10.1016/j.atmosres.2018.12.021
Scopus记录号: 2-s2.0-85059156305
论文题名: Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer
作者: Wang S. ; He B. ; Yuan M. ; Su F. ; Yin S. ; Yan Q. ; Jiang N. ; Zhang R. ; Tang X.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 219 起始页码: 13
结束页码: 23
语种: 英语
英文关键词: Formation mechanisms
; Heavy haze
; Mixing states
; Single particles
; SPAMS
Scopus关键词: Aerosols
; Coal dust
; Industrial emissions
; Mass spectrometers
; Meteorology
; Mixing
; Organic carbon
; Plutonium compounds
; Urban growth
; Wind
; Formation mechanism
; Heavy haze
; Mixing state
; Single particle
; SPAMS
; Coal combustion
; aerosol
; formation mechanism
; haze
; mass spectrometry
; meteorology
; mixing
; organic carbon
; particulate matter
; China
; Henan
; Zhengzhou
英文摘要: To investigate the formation of haze during the cold season, continuous ambient air measurements were taken at an urban site in Zhengzhou from October 10, 2016 through December 31, 2016 using a single particle aerosol mass spectrometer. In total, 4,099,800 particles were analyzed and classified into eight major particle types: elemental carbon (EC, 36.7%), organic carbon (OC, 30.0%), ECOC (8.6%), K-rich (13.0%), levoglucosan (1.2%), metal (2.2%), NH 4 -K (2.1%), and dust (6.2%). By combining these measurements with correlation analysis and wind data, particle sources were determined to be vehicles, industrial emissions, coal combustion, biomass burning, secondary aerosols, agriculture, and dust. Additionally, analysis of mixing states indicated that particles underwent substantial aging and secondary OC particles were dominant OC species. Temporal profiles of meteorological parameters, mixing states, and particle types during a typical haze episode revealed that EC and OC particles were dominant components during haze formation, and a northeastern transport route (Anyang-Zhengzhou and Puyang-Xuchang) for OC particles was identified by potential source contribution function and concentration weighted trajectory analysis. Relatively higher humidity and lower temperature favored the formation of secondary inorganic aerosol. Wind direction and speed determined the transport, formation, and elimination of stagnant weather conditions. In sum, heavy haze during the cold season in Zhengzhou was observed due to extensive aerosol aging under adverse weather conditions (i.e., northeastern wind direction, wind speed <2 m s −1 , temperature < 10 °C, relative humidity >60%, temperature inversion, and uniform pressure field). © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122327
Appears in Collections: 气候变化事实与影响
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作者单位: Research Institute of Environmental Science, College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China; Zhengzhou Environmental Monitoring Center, Zhengzhou, 450001, China
Recommended Citation:
Wang S.,He B.,Yuan M.,et al. Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer[J]. Atmospheric Research,2019-01-01,219