Individual-particle analyses of coastal Antarctic aerosols

Samplings of aerosol particles were made almost monthly throughout a year at a coastal Antarctic station Syowa (69°00′S, 39°35′E). With X-ray spectrometry, elemental composition of the individual particles is studied. The dominant aerosol constituents are sulphur species and sea salt. They are internally mixed with each other in most cases. We find seasonal variations in (1) the relative importance of sulphur and sea salt, and (2) the modification of sea salt by acidic materials. In the austral-summer samples, the number fractions of sulphur-rich particles and modified sea-salt particles are high, because the production of marine organosulfer was enhanced. In the austral-winter samples, the number fraction of unmodified sea-salt particles is high, because severe storms enhanced the production of sea salt. DOI: 10.1034/j.1600-0889.1999.t01-2-00002.x

[1]  M. Legrand,et al.  Atmospheric near‐surface nitrate at coastal Antarctic sites , 1998 .

[2]  M. Legrand,et al.  Ammonium in coastal Antarctic aerosol and snow: Role of polar ocean and penguin emissions , 1998 .

[3]  M. Legrand,et al.  Coastal Antarctic aerosol and snowfall chemistry , 1998 .

[4]  P. Buseck,et al.  Compositional variations of sea‐salt‐mode aerosol particles from the North Atlantic , 1995 .

[5]  H. Mouri,et al.  Giant sulfur‐dominant particles in remote marine boundary layer , 1995 .

[6]  H. Mouri,et al.  Shattering and modification of sea‐salt particles in the marine atmosphere , 1993 .

[7]  W. Chameides,et al.  Aqueous‐phase chemical processes in deliquescent sea‐salt aerosols: A mechanism that couples the atmospheric cycles of S and sea salt , 1992 .

[8]  P. Artaxo,et al.  Trace elements and individual particle analysis of atmospheric aerosols from the Antarctic peninsula , 1992 .

[9]  W. C. Graustein,et al.  Sources of nitrate and ozone in the marine boundary layer of the tropical north Atlantic , 1992 .

[10]  R. Larsen,et al.  Nitrogen and sulfur species in acrosols at Mawson, Antarctica, and their relationship to natural radionuclides , 1992 .

[11]  T. Yamanouchi,et al.  Methanesulfonic acid and non-sea-salt sulfate over both hemispheric oceans , 1991 .

[12]  A. L. Dick,et al.  Summertime aerosol measurements in the ross sea region of Antarctica , 1991 .

[13]  D. Jacob,et al.  The geochemical cycling of reactive chlorine through the marine troposphere , 1990 .

[14]  D. Wagenbach,et al.  Coastal Antarctic aerosol: the seasonal pattern of its chemical composition and radionuclide content , 1988 .

[15]  M. Legrand,et al.  Formation of HCl in the Antarctic atmosphere , 1988 .

[16]  M. Andreae.  The Ocean as a Source of Atmospheric Sulfur Compounds , 1986 .

[17]  T. Ito.  Study of background aerosols in the Antarctic troposphere , 1985 .

[18]  K. Okada.  Nature of individual hygroscopic particles in the urban atmosphere , 1983 .

[19]  B. A. Bodhaine,et al.  Seasonal variation in antarctic aerosol , 1981 .

[20]  J. Gras,et al.  On Sizing Impacted Sulfuric Acid Aerosol Particles , 1979 .

[21]  G. Lorimer,et al.  The quantitative analysis of thin specimens , 1975 .

[22]  F. Kasten.  Falling Speed of Aerosol Particles , 1968 .

[23]  W. Fischer,et al.  Particles in the Antarctic Atmosphere , 1968 .