Origin and formation mechanisms of organic nitrogen aerosols derived from biogenic terpenes
| Project/Area Number |
16H02931
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Hokkaido University |
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Principal Investigator |
Miyazaki Yuzo 北海道大学, 低温科学研究所, 助教 (60376655)
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| Co-Investigator(Kenkyū-buntansha) |
佐藤 圭 国立研究開発法人国立環境研究所, 地域環境研究センター, 室長 (10282815)
持田 陸宏 名古屋大学, 宇宙地球環境研究所, 教授 (10333642)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2018: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2016: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Keywords | 有機態窒素 / 大気エアロゾル / 植生由来揮発性有機化合物 / 含水分量 / エアロゾル / テルペン類 / 含硫黄有機物 / 粒子含水分量 / 含硫化窒素 / 有機エアロゾル / 同位体比 / 質量分析 / イソプレン |
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| Outline of Final Research Achievements |
We aimed to elucidate the origin and formation processes of atmospheric water-soluble organic nitrogen (WSON) aerosols in forest environment. We found that aerosol liquid water content, primarily driven by anthropogenic sulfate, promotes aqueous reactions of reactive nitrogen and biogenic organic carbon to be the dominant formation processes of WSON, particularly during nighttime.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究成果は、植生から大気に放出される揮発性有機化合物と人為起源物質および大気微粒子の含水分量の相互作用によるエアロゾル生成量を精度良く評価する上での重要な知見である。将来的な気温上昇等に伴って、森林植生が放出する揮発性有機化合物の種類や量および大気水蒸気量も長期的に変動していくことが予測される中、気候影響評価で重要な大気エアロゾルについて、人為起源・植生起源の相互作用による生成量を予測する上で重要な成果である。
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Characterization of chromophoric water-soluble organic matter in urban, forest and marine aerosols by HR-ToF-AMS analysis and excitation-emission matrix spectroscopy2016
Author(s)
Chen Qinghai, Miyazaki Yuzo, Kawamura Kimitaka, Matsumoto Kiyoshi, Coburn Sean, Volkamer Rainer, Iwamoto Yoko, Kagame Sara, Deng Lange, Ogawa Shuhei, Ramasamy Sathiyamurthi, Kato Shungo, Ida Akira, Yoshizumi Kajii, Mochida Michihiro
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Journal Title
Environ. Sci. & Technol.
Volume: 50
Issue: 19
Pages: 10351-10360
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Secondary aerosol formed from isoprene oxidation under acidic conditions: laboratory and field study2017
Author(s)
Sato, K., Nakayama, T., Sathiyamurthi, R., Inomata, S.; Fu, P., Imamura, T., Akimoto,
Organizer
33rd Symposium on Chemical Kinetics and Dynamics
Related Report
Int'l Joint Research
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