DOI: 10.1016/j.atmosenv.2014.07.025
Scopus记录号: 2-s2.0-84904257980
论文题名: A study of the sea-salt chemistry using size-segregated aerosol measurements at coastal Antarctic station Neumayer
作者: Teinilä K ; , Frey A ; , Hillamo R ; , Tülp H ; C ; , Weller R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 96 起始页码: 11
结束页码: 19
语种: 英语
英文关键词: Antarctica
; Mass size distribution
; Particle number concentration
; Sea salt modification
Scopus关键词: Aerosols
; Sea ice
; Aerodynamic diameters
; Antarctica
; Chemical and physical properties
; Mass size distribution
; Optical particle counters
; Particle number concentration
; Physicochemical process
; Sea salts
; Chlorine compounds
; chloride
; methane
; nitrate
; sea water
; sodium chloride
; aerosol
; chemical composition
; chloride
; coastal zone
; concentration (composition)
; measurement method
; optical property
; physicochemical property
; sea salt
; size distribution
; Antarctica
; article
; chemical analysis
; concentration (parameters)
; controlled study
; depletion
; dissociation
; evaporation
; fractionation
; hypobarism
; ion pair chromatography
; mass
; measurement
; particle size
; physical chemistry
; precursor
; priority journal
; salt loading
; sampler
; sampling
; sea
; sea ice
; seashore
; seasonal variation
; sodium depletion
; summer
; water content
; Antarctica
; East Antarctica
; Neumayer Station
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: Aerosol chemical and physical properties were measured in 2010 at Neumayer research station, Antarctica. Samples for chemical analysis (ion chromatography) were collected using a Teflon/Nylon filter combination (TNy) sampler, and with a multi stage low pressure impactor (SDI). Particle number concentration was measured continuously with a Grimm OPC optical particle counter. Total particle number concentration varied largely throughout the year, and the highest number concentrations for particles larger than 0.3μm were observed simultaneously with the highest sea salt concentrations. About 50% of the sea salt aerosol mass was found in the submicron size range. Below 0.2μm of particle aerodynamic diameter the contribution of sea salt aerosols was negligible. Further analysis showed that sea salt aerosols had undergone physico-chemical processes, either during the transportation, or during their formation. High degree of chloride depletion was observed during austral summer, when the presence of acidic gases exhibit their characteristic seasonal maximum. Apart from chloride depletion, excess chloride relating to sodium was also detected in one SDI sample, indicating actually a sodium depletion by mirabilite formation on freshly formed sea ice areas. Analysis of selected episodes showed that the concentration of sea salt particles, their modal structure, and their chemical composition is connected with their source areas, their formation mechanisms, and local transport history. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81171
Appears in Collections: 气候变化事实与影响
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作者单位: Finnish Meteorological Institute, Atmospheric Composition Research, Erik Palménin aukio 1, FIN-00560 Helsinki, Finland; Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Am Handelshafen 12, 27570 Bremenhaven, Germany; British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom
Recommended Citation:
Teinilä K,, Frey A,, Hillamo R,et al. A study of the sea-salt chemistry using size-segregated aerosol measurements at coastal Antarctic station Neumayer[J]. Atmospheric Environment,2014-01-01,96