Research on optical properties of secondary organic aerosol originated from vehicle exhaust

2017 Fiscal Year Final Research Report

• Project/Area Number: 25701001
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Nagasaki University (2017); Nagoya University (2013-2016)
• Principal Investigator: NAKAYAMA Tomoki 長崎大学, 水産・環境科学総合研究科(環境), 准教授 (40377784)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Keywords: 環境変動 / 気候変動 / 環境分析

Outline of Final Research Achievements

Light absorption properties of primary organic aerosol (POA) and secondary organic aerosol (SOA) originated from vehicle exhaust, as well as enhancement of light absorption of black carbon (BC) by coating with other materials, were studied using spectroscopic techniques. Significant light absorption by POA and SOA was found under specific conditions, including vehicle type, running speed, and aging process. In addition, enhancement of light absorption of BC due to coating was observed after oxidation of volatile organic compounds and nitrogen oxides emitted from vehicles.

Free Research Field

環境動態解析