Observation of the simultaneous transport of Asian mineral dust aerosols with anthropogenic pollutants using a POPC during a long-lasting dust event in late spring 2014

Xiaole Pan, Itsushi Uno, Yukari Hara, Masatoshi Kuribayashi, Hiroshi Kobayashi, Nobuo Sugimoto, Shigekazu Yamamoto, Takaaki Shimohara, Zifa Wang

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We observed a long-lasting dust event from 25 May to 2 June 2014, using a polarization optical particle counter (POPC). The transport of dust plumes over East Asia was verified on the basis of observations of Moderate Resolution Imaging Spectroradiometer, a lidar network, and surface synoptic observation stations. Mixing of dust and anthropogenic pollutants was investigated according to the variation in the depolarization ratio as a function of particle size. The nonsphericity of dust particles varied due to the impact of anthropogenic pollutants on their pathway. In the coarse mode, dust particles always had a clear nonspherical configuration, although large amounts of nitrate were also present. Supermicron particles are occasionally present in a spherical configuration, possibly due to the complex mixing of natural dust and anthropogenic particles. Statistically, ~64% of the total nitrate mass was deemed to be transported from outside of Japan due to a trapping effect in the dust plume.

Original languageEnglish
Pages (from-to)1593-1598
Number of pages6
JournalGeophysical Research Letters
Volume42
Issue number5
DOIs
Publication statusPublished - Mar 16 2015

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Observation of the simultaneous transport of Asian mineral dust aerosols with anthropogenic pollutants using a POPC during a long-lasting dust event in late spring 2014'. Together they form a unique fingerprint.

  • Cite this