DOI: 10.1016/j.atmosenv.2015.04.024
Scopus记录号: 2-s2.0-84927745828
论文题名: A comparative study of cloud condensation nuclei measured between non-heating and heating periods at a suburb site of Qingdao in the North China
作者: Li K ; , Zhu Y ; , Gao H ; , Yao X
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 112 起始页码: 40
结束页码: 53
语种: 英语
英文关键词: CCN
; Haze
; New particle formation
; Particle number concentration
; Space-heating
Scopus关键词: Atmospheric chemistry
; Chemical analysis
; Condensation
; Space heating
; Atmospheric particles
; CCN
; Chemical compositions
; Cloud condensation nuclei
; Comparative studies
; Haze
; New particle formation
; Particle number concentration
; Heating
; cloud condensation nucleus
; comparative study
; haze
; heating
; particle size
; spatiotemporal analysis
; suburban area
; aerosol
; air pollutant
; Article
; atmosphere
; biomass
; chemical composition
; China
; cloud
; cloud condensation nuclei
; haze
; heating
; plume
; priority journal
; sea
; China
; Qingdao
; Shandong
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: In this paper, we studied concentrations of cloud condensation nuclei (CCN) and CCN activity measured at a suburb site of Qingdao in the North China during a non-heating period from 19 May to 3 June 2013 and a heating period from 6 November to 6 December 2013. Concentrations of CCN during the non-heating period were 3.1±1.9 (mean±standard deviation), 4.9±3.4, 5.6±3.9, 6.1±4.3 and 6.5±4.6 in unit of×103cm-3at supersaturation (SS) of 0.2%, 0.4%, 0.6%, 0.8% and 1.0%, respectively. The corresponding CCN activities of atmospheric particles were 0.28±0.17, 0.43±0.24, 0.48±0.26, 0.52±0.27 and 0.54±0.28, respectively. Concentrations of CCN during the heating period were 3.1±1.3, 6.4±2.3, 8.5±2.9, 9.6±3.5 and 10±3.9 in unit of×103cm-3at SS of 0.2%, 0.4%, 0.6%, 0.8% and 1.0%, respectively. The corresponding CCN activities were 0.11±0.06, 0.24±0.11, 0.31±0.14, 0.35±0.15 and 0.37±0.15, respectively. At SS≥0.4%, concentrations of CCN were significantly larger during the heating period than during the non-heating period with 95% confidence because of larger particle number concentrations associated. However, CCN activities were significantly lower during the heating period than during the non-heating period at each SS. The lower CCN activities during the heating period were analyzed in terms of origins, median mobility diameter and possible chemical composition of atmospheric particles. However, when new particle formation events during the heating and the non-heating periods were considered alone, CCN activities of grown new particles at the same size range sometimes appeared to be constant regardless of the heating or non-heating periods. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81697
Appears in Collections: 气候变化事实与影响
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作者单位: Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, China; Qiangdao Collaborative Center of Marine Science and Technology, China
Recommended Citation:
Li K,, Zhu Y,, Gao H,et al. A comparative study of cloud condensation nuclei measured between non-heating and heating periods at a suburb site of Qingdao in the North China[J]. Atmospheric Environment,2015-01-01,112