Internal mixing of pollutants for submicron particles observed during springtime in Japan

Jun Matsumoto, Masahiro Narukawa, Kenshi Takahashi, Yutaka Matsumi, Akihiro Yabushita, Atsushi Shimizu, Ichiro Matsui, Nobuo Sugimoto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Internally mixed states of submicron particles during transport from the Asian continent to the Pacific Ocean were analyzed using a single-particle time-offlight mass spectrometer. The observation was conducted at Tsukuba in Japan in the spring of 2005 in order to investigate springtime transport of particles from the continent. The sum of ion intensities of sulfate (HSO4 -) detected in particles originating from the continental air masses counted for 75% of that in all particles during the observation. By analyzing correlations among compounds, origins and internally mixed states of compounds were estimated. It was found that nitrate was mixed with sulfate-rich particles as the air mass approached Japan. It was confirmed that Asian mineral dust particles played significant roles for transport of continental sulfate to Japan. As a result of analysis on internal mixing of chlorine and nitrate, it was implied that the chlorine loss in fine sea salt particles had already proceeded at Tsukuba. It was characteristic that fluoride ions were significantly detected, coal combustion in the Asian Continent can be an important source of fluorides detected in Japan through the westward transportation of fine particles including fluorides.

Original languageEnglish
Pages (from-to)27-41
Number of pages15
JournalAsian Journal of Atmospheric Environment
Volume3
Issue number1
DOIs
Publication statusPublished - 2009 Jun
Externally publishedYes

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pollutant
fluoride
sulfate
air mass
chlorine
nitrate
particle
ion
sea salt
spectrometer
dust
ocean
mineral
continent

Keywords

  • Asian mineral dust
  • Internally mixed state
  • Negative ion
  • Single-particle analysis
  • Ternary plot
  • TOFMS

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Internal mixing of pollutants for submicron particles observed during springtime in Japan. / Matsumoto, Jun; Narukawa, Masahiro; Takahashi, Kenshi; Matsumi, Yutaka; Yabushita, Akihiro; Shimizu, Atsushi; Matsui, Ichiro; Sugimoto, Nobuo.

In: Asian Journal of Atmospheric Environment, Vol. 3, No. 1, 06.2009, p. 27-41.

Research output: Contribution to journalArticle

Matsumoto, J, Narukawa, M, Takahashi, K, Matsumi, Y, Yabushita, A, Shimizu, A, Matsui, I & Sugimoto, N 2009, 'Internal mixing of pollutants for submicron particles observed during springtime in Japan', Asian Journal of Atmospheric Environment, vol. 3, no. 1, pp. 27-41. https://doi.org/10.5572/ajae.2009.3.1.027
Matsumoto, Jun ; Narukawa, Masahiro ; Takahashi, Kenshi ; Matsumi, Yutaka ; Yabushita, Akihiro ; Shimizu, Atsushi ; Matsui, Ichiro ; Sugimoto, Nobuo. / Internal mixing of pollutants for submicron particles observed during springtime in Japan. In: Asian Journal of Atmospheric Environment. 2009 ; Vol. 3, No. 1. pp. 27-41.
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