2020 Fiscal Year Final Research Report
An attempt estimating the urban-scale NO2 emission in a real-time basis
| Project/Area Number |
19K22909
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 63:Environmental analyses and evaluation and related fields
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
植山 雅仁 大阪府立大学, 生命環境科学研究科, 准教授 (60508373)
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| Project Period (FY) |
2019-06-28 – 2021-03-31
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| Keywords | 二酸化窒素 / 都市大気汚染 / フラックス / 渦相関法 |
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| Outline of Final Research Achievements |
A noble technique for quantifying the atmospheric mixing ratio of nitrogen dioxide (NO2) that is known as a major tropospheric pollutant has been developed based on optical spectroscopy using a light emitting diode. Real-time based detection of NO2 at atmospheric levels has been achieved with the instrument developed, which was applied to measure NO2 flux through instrumental combination with a three-dimensional sonic anemometer. Test measurements have been conducted at the rooftop space of the Sakai City Hall in Osaka Prefecture, revealing the diurnal properties in NO2 flux in a winter season of 2021.
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| Free Research Field |
大気環境科学
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| Academic Significance and Societal Importance of the Research Achievements |
自動車などから排出される二酸化窒素(NO2)は，都市域の大気汚染やヒトの健康被害を引き起こす物質の一つである．本研究では，LEDを用いてNO2を検出する新しい方法を開拓するとともに，それを気象学の方法と融合させることによって，都市域におけるNO2の発生量をリアルタイムで調べる新しい手法を創出した．
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