Heterogeneous reactions with HOx radicals and property changes in organic aerosol particles
| Project/Area Number |
22310018
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | Japan Agency for Marine-Earth Science and Technology |
|---|
Principal Investigator |
KANAYA Yugo 独立行政法人海洋研究開発機構, 地球環境変動領域, チームリーダー (60344305)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
TAKETANI Fumikazu 独立行政法人海洋研究開発機構, 地球環境変動領域, 研究員 (50377785)
KOMAZAKI Yuichi 独立行政法人海洋研究開発機構, 地球環境変動領域, 主任研究員 (80286640)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
|
|---|
| Keywords | 有機エアロゾル / 大気中酸化 / 光学特性 / 不均一反応 / 吸湿特性 / 環境質定量化・予測 / 地球変動予測 / 大気現象 |
|---|
| Research Abstract |
Changes in the optical properties of organic aerosol particles upon exposure to HOx radicals, major atmospheric oxidants, were measured in the laboratory. Dependence of the scattering coefficient on the relative humidity was measured with an integrating nephelometer equipped with a humidifier. In addition to aging, presence of organics originally having large hygroscopicity could control the optical properties of the atmospheric organic aerosols. These findings were used to interpret the roles of organics in determining the humidity dependence of the aerosol scattering coefficient as observed in China and Fukue Island.
|
Report
(4 results)
Research Products
(15 results)
