Basic research on mechanisms of Yellow Dust emission and health effects of pollutants

Research Project , Research Report 2003

Teruyuki NAKAJIMA Center for Climate System Research, the University of Tokyo
Kazuhiko TAKEUCHI Graduate School of Agricultural and Life Science, the University of Tokyo
Ryutaro OHTSUKA Department of Human Ecology, School of International Health,
the University of Tokyo
Tomoo OKAYASU Graduate School of Agricultural and Life Science, the University of Tokyo
Makiko MUKAI Center for Climate System Research, the University of Tokyo

Abstract

Yellow dust events mainly occur in spring time over East Asia. This is the phenomenon in which sand and soil particles raised by dust storms are transported and make the atmosphere turbid. Major sources of yellow dust are located in arid and semi-arid regions in East Asia. Dusts have various impacts on the environment and human society. Mineral dusts affects the radiation balance through their scattering and absorbing solar and thermal radiation as well as affecting the atmospheric composition through their chemical reaction in the air. Furthermore, soil particles in the air are damage human health. To investigate mechanisms of yellow dust emission and its impacts, this study takes the wind erosion in desert region, dust transportation to proximal regions, and the health effects of air condition.

Keywords:

yellow dust, wind erosion, pollutants, East Asia