2010 Fiscal Year Final Research Report
Chemical compositions, spatial distributions and hygroscopic properties of organic aerosols from East and South Asia
| Project/Area Number |
19204055
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Geochemistry/Astrochemistry
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
KAWAMURA Kimitaka Hokkaido University, 低温科学研究所, 教授 (70201449)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
MOCHIDA Michihiro 名古屋大学, 高等研究院, 特任准教授 (10333642)
MIYAZAKI Yuzo 北海道大学, 低温科学研究所, 助教 (60376655)
SEKI Osamu 北海道大学, 低温科学研究所, 准教授 (30374648)
|
|---|
| Project Period (FY) |
2007 – 2010
|
| Keywords | 大気圏 / 水圏化学 / 大気エアロゾル |
|---|
| Research Abstract |
Atmospheric aerosols, collected from China, Korea, Mongolia, India and Japan as well as coastal and remote islands, have been studied for organic chemical compositions. The aerosols from Manshan, 40 km north of Beijing, showed higher concentrations of dicarboxylic acids such as oxalic acid than those from Beijing, suggesting a secondary (photochemical) production of water-soluble organic acids during atmospheric transport. Indian aerosols from New Delhi showed very high concentrations of low molecular weight diacids. Aerosols from Ulaanbaatar were studied for the hygroscopicity, indicating that the growth factor (Gf=1.22) is close to that of biomass burning aerosols.
|
