Proj
J-GLOBAL ID:200904082080777782  Research Project code:9800045539 Update date:Dec. 15, 2003

Size distribution and vertical profile of carbon components in ambient particulate matter

浮遊粒子状物質中の炭素成分の高度特性と粒径分布
Study period:1997 - 1998
Organization (1):
Investigating Researcher (4):
Research overview:
Vertical profile of carbon components in ambient particulate matter was investigated every month for five years since 1990 at 3 points of Tokyo tower. In addition, the size distribution was investigated in summer and winter of the last year of these five years. Concentrations, of elemental carbon and organic carbon had decreasing tendecies with height. The decreasing tendency of organic carbon was larger than that of elemental carbon. Next, considering the range of particle size, the tendency to decrease was observed obviously on fine particles of elemental carbon in winter and coarse particles of organic carbon in summer. So, it was considered that organic carbon had a possibility of resolution, and that elemental carbon was influenced by automobile.
Keywords (10):
air ,  pollution ,  pollution ,  organic ,  element ,  particle ,  vertical ,  automobile ,  effluent ,  pollution
Research program: Ordinary Research

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