Analysis of the mixing state of airbone particles using a tandem combination of laser-induced fluorescence and incandescence techniques

2015 Fiscal Year Final Research Report

• Project/Area Number: 25740013
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: Taketani Fumikazu 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 主任研究員 (50377785)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: エアロゾル粒子 / 逐次分析 / ブラックカーボン / 蛍光粒子

Outline of Final Research Achievements

We developed instrument using tandem detection of laser-induced fluorescence and incandescence from single particles in real-time. First, a particle is delivered to optical chamber for detection of fluorescence. After measurement of the fluorescence, the particle is delivered to the incandescence detection chamber. This analysis system can provides the information of fluorescent material and black carbon in the particle. We analyzed 43,881 particles in total at ambient air. The particles having fluorescent composition, black carbon, and both of them are 6213(14.2%), 1010(2.3%), and 122(0.3%), respectively.

Free Research Field

大気化学