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Role of basic organic nitrogen compounds in the production and growth processes of submicron aerosols

Research Project

Project/Area Number 16K05620
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Geochemistry/Cosmochemistry
Research InstitutionUniversity of Yamanashi

Principal Investigator

MATSUMOTO Kiyoshi  山梨大学, 大学院総合研究部, 准教授 (60373049)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords有機態窒素 / エアロゾル / ガス / サブミクロンエアロゾル / 新粒子生成 / メチルアミン / アミン化合物 / 気候変動 / 有機窒素 / 生物利用可能態窒素 / 大気化学 / 大気汚染 / 地球化学
Outline of Final Research Achievements

Organic nitrogen species contributed about 20% of the water-soluble nitrogen in the submicron aerosols and gas phase. The concentrations of the organic nitrogen species in the gas phase were comparable to those in the submicron aerosols. The present result indicates that a major source of the gaseous organic nitrogen is the emission from the soil, and the gaseous organic nitrogen species react with acid compounds in the atmosphere to form submicron aerosols. Methylamine occupied only a minor fraction of the organic nitrogen in the submicron aerosols and gas phase. The present result, however, also found that, compared with the gaseous ammonia, the gaseous methylamine more preferentially reacted with sulfuric acid, which suggests the possibility of the new particle production process through the reaction of methylamine with sulfuric acid.

Academic Significance and Societal Importance of the Research Achievements

サブミクロンエアロゾルは太陽光散乱や雲形成を通して地球気候に影響を与える。また、主に都市域では粒子状大気汚染を引き起こす。気候変動の将来予測や大気汚染対策において、その発生メカニズムや分布の理解は重要である。本研究では、サブミクロンエアロゾルの生成と成長に有機態窒素種が重要な役割を果たしていることが明らかになった。有機態窒素の化合物レベルでの定性には課題も残るが、メチルアミンが新粒子生成に関与していることも示唆された。気候変動の将来予測の精度を上げ、更に粒子状大気汚染の発生要因の理解を深める上で、アミン化合物などの有機態窒素種の動態の理解の重要性が示された。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2019 2018 2017 2016

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results)

  • [Journal Article] Simultaneous measurement of the water-soluble organic nitrogen in the gas phase and aerosols at a forested site in Japan2019

    • Author(s)
      K. Matsumoto, Y. Watanabe, K. Horiuchi, T. Nakano
    • Journal Title

      Atmospheric Environment

      Volume: 200 Pages: 312-318

    • DOI

      10.1016/j.atmosenv.2018.12.011

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Water-soluble organic nitrogen in the aerosols and rainwater at an urban site in Japan: Implications for the nitrogen composition in the atmospheric deposition2018

    • Author(s)
      K. Matsumoto, F. Takusagawa, H. Suzuki, K. Horiuchi
    • Journal Title

      Atmospheric Environment

      Volume: 191 Pages: 267-272

    • DOI

      10.1016/j.atmosenv.2018.07.056

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Origin of the water-soluble organic nitrogen in the maritime aerosol2017

    • Author(s)
      Matsumoto Kiyoshi、Yamamoto Yuya、Nishizawa Kotaro、Kaneyasu Naoki、Irino Tomohisa、Yoshikawa-Inoue Hisayuki
    • Journal Title

      Atmospheric Environment

      Volume: 167 Pages: 97-103

    • DOI

      10.1016/j.atmosenv.2017.07.050

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Water-soluble organic nitrogen in the gas phase measured by the denuder-filter pack method2017

    • Author(s)
      Kiyoshi Matsumoto, Koki Yamato
    • Journal Title

      Tellus B

      Volume: 69 Issue: 1 Pages: 1-5

    • DOI

      10.1080/16000889.2017.1306916

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 大気中有機窒素及びメチルアミンに関する研究2018

    • Author(s)
      平井亜季,松本潔, 中野隆志
    • Organizer
      第4回山岳科学学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 富士北麓における降水中主要成分の森林への沈着に関する研究2018

    • Author(s)
      小河卓也,松本潔, 中野隆志
    • Organizer
      第4回山岳科学学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 富士吉田及び甲府における大気エアロゾル中窒素成分に関する研究2017

    • Author(s)
      渡辺悠也,松本潔
    • Organizer
      第3回山岳科学学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 大気中のガス状及び半揮発性有機態窒素2016

    • Author(s)
      松本 潔、大和 昂貴
    • Organizer
      日本地球化学会
    • Place of Presentation
      大阪市立大学(大阪府大阪市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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