DOI: 10.1016/j.atmosenv.2015.01.038
Scopus记录号: 2-s2.0-84923883625
论文题名: Characteristics of new particle formation events in Nanjing, China: Effect of water-soluble ions
作者: An J ; , Wang H ; , Shen L ; , Zhu B ; , Zou J ; , Gao J ; , Kang H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 108 起始页码: 32
结束页码: 40
语种: 英语
英文关键词: Atmospheric aerosol
; NPF event
; Number concentration
; Water-soluble ions
; Yangtze River Delta
Scopus关键词: Aerosols
; Atmospheric aerosols
; Atmospheric humidity
; Ion chromatography
; Ions
; Meteorology
; Sulfur dioxide
; Meteorological factors
; New particle formation
; NPF event
; Number concentration
; Particle number size distribution
; Trace gas concentrations
; Water-soluble ions
; Yangtze river delta
; Water resources
; aerosol
; air mass
; concentration (composition)
; condensation
; high temperature
; particle size
; solubility
; aerosol
; air
; Article
; China
; gas
; growth rate
; high temperature
; humidity
; mass
; new particle formation
; particle size
; physical phenomena
; priority journal
; radiation
; seashore
; spectrometer
; summer
; vapor
; wide range particle spectrometer
; wind
; China
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: New particle formation (NPF) events and water-soluble ions were studied at the meteorological building on the campus of the Nanjing University of Information Science and Technology (NUIST), which is located in the western part of the Yangtze River Delta (YRD). A wide-range particle spectrometer (WPS) provided particle number size distributions between 10nm and 10μm, whereas water-soluble ions for particles with diameters between 10nm and 18μm were measured using a 13-stage Nano-MOUDI aerosol sampler and 850 professional Ion Chromatography (IC). Additionally, meteorological data, trace gas concentrations and mass concentration were recorded. Ten NPF days were captured during the measurement period from 08 July to 02 August 2012. The mean aerosol number concentration, which was primarily composed of Aitken-mode particles, i.e., with diameters of 20-100nm, was 13,664cm-3, which was 1.9 times larger than that on non-NPF days. The results suggest that the NPF events were only slightly affected by O3, SO2, and NO2; the primary factors affecting NPF events were meteorological factors and air mass directions. NPF events were found to be favorable during the summer in the presence of high temperatures, strong radiation, low humidity, strong winds and clean air masses originating from the southeastern coast. The mean growth rate (GR), formation rate (J10), condensational sink (CS), condensing vapor rate (Q), and condensation vapor (C) were determined to be 7.6nmh-1, 3.7cm-3s-1, 2.8×10-2s-1, 2.9×106cm-3s-1, and 10.5×107cm-3, respectively, on NPF days. The largest effects of the studied NPF events were on the mass and water-soluble ion concentrations of Aitken-mode particles, followed by nuclei-mode particles; few contributions to accumulation- and coarse-mode particles were observed. Different water-soluble ions were observed to have distinct interactions with the NPF events. The proportions of NH4+, SO42-, NO3-, K+ and Mg2+ in nuclei- and Aitken-mode particles to the total concentrations on NPF days were substantially higher than on non-NPF days. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81832
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China; Jiaxing Environmental Monitoring Station, Jiaxing, China
Recommended Citation:
An J,, Wang H,, Shen L,et al. Characteristics of new particle formation events in Nanjing, China: Effect of water-soluble ions[J]. Atmospheric Environment,2015-01-01,108