Behavior of secondary inorganic species in gaseous and aerosol phases measured in Fukue Island, Japan, in dust season

Hiroshi Hayami*

*この研究の対応する著者

研究成果: Article査読

16 被引用数 (Scopus)

抄録

The denuder/filter-pack sampling system has been used to simultaneously measure the daily concentrations of inorganic compounds of fine and coarse aerosol and related gases in Fukue Island, Japan, in three springs (March-April of 2000-2002). Gaseous nitric acid concentrations are low, and gas-to-total (gas+aerosol) fractions of nitrate are also low. The gas-to-total fraction of ammonium and the production of non-sea-salt (nss)-sulfate on coarse aerosol increase with dust loading. Total nitrate concentration correlates with both total ammonium concentration and total aerosol nss-sulfate concentration, although these species are differently partitioned among the gas and fine- and coarse-aerosol phases. In some dust events, there is a time lag between an increase in nss-sulfate concentration and an increase in dust loading. Trajectory analysis shows that one of the dust events with a time lag is composed of nss-sulfate from the east affected by volcanic plumes and dust from the northwest passing over the loess areas in the Asian continent.

本文言語English
ページ(範囲)2243-2248
ページ数6
ジャーナルAtmospheric Environment
39
12
DOI
出版ステータスPublished - 2005 4
外部発表はい

ASJC Scopus subject areas

  • 環境科学(全般)
  • 大気科学

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