• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Studies on the mixing state of aerosol particles in low-latitude Asian regions based on an online aerosol composition analyzer and offline single particle analysis

Research Project

Project/Area Number 16H05620
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Environmental dynamic analysis
Research InstitutionTokyo Metropolitan University

Principal Investigator

Takegawa Nobuyuki  首都大学東京, 理学研究科, 教授 (00324369)

Co-Investigator(Kenkyū-buntansha) 三澤 健太郎  首都大学東京, 理学研究科, 助教 (10431991)
足立 光司  気象庁気象研究所, 環境・応用気象研究部, 主任研究官 (90630814)
Research Collaborator ZHAO Jun  
SAHU Lokesh  
CHOU Charles C.-K.  
POCHANART Pakpong  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords環境計測 / ブラックカーボン / エアロゾル / 混合状態 / アジア / 環境分析
Outline of Final Research Achievements

Black carbon (BC) aerosols are emitted from incomplete combustion of carbon-containing materials including fossil fuel and biomass. BC aerosol particles strongly absorb solar visible radiation and contribute to heating of the atmosphere. We used an online laser-induced incandescence - mass spectrometric analyzer (LII-MS) and offline electron microscopic analysis, and successfully obtained the mass concentrations and mixing state of BC-containing aerosols in low-latitude Asian regions (Taiwan, Thailand). The key point obtained from the Taiwan data is that there were a variety of aerosol mixing states, including core-shell and attached type particles, in widespread regional pollution exported from the Asian continent.

Academic Significance and Societal Importance of the Research Achievements

エアロゾルは太陽光の散乱・吸収 (直接効果) および雲凝結核としての作用 (間接効果) により地球の気候に影響を及ぼす。このうち黒色炭素 (BC) の気候影響については非常に不確実性が大きい。BC混合状態は、観測および数値モデル含めて多くの研究者が着目している研究テーマであるが、実大気観測データは限られている。本研究においてアジアにおけるBC混合状態に関する新しいデータが得られたことで、3次元気候モデルの検証・改良に貢献することが期待される。

Report

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

    (14 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (8 results) Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] 光州科学技術院(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 中央研究院(台湾)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] タイ国立行政開発大学院大学/シラパコーン大学(タイ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 光州科学技術院(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] 中央研究院(台湾)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] タイ国立行政開発大学院大学(タイ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] 中央研究院(台湾)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] 中山大学(中国)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Calibration of a particle mass spectrometer using polydispersed aerosol particles2019

    • Author(s)
      Cuizhi Sun, and Nobuyuki Takegawa
    • Journal Title

      Aerosol Science and Technology

      Volume: 53 Issue: 1 Pages: 1-7

    • DOI

      10.1080/02786826.2018.1532071

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Variability in the mixing state of black carbon aerosols observed in Asian outflow in the spring of 20162018

    • Author(s)
      Nobuyuki Takegawa, Yuya Ozawa, Makoto Koike, Tomotaka Oizumi, Kwangyul Lee, Heeju Cho, and Kihong Park
    • Organizer
      2018 joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Laboratory evaluation of the particle trap laser desorption mass spectrometer (PT-LDMS): quantification of ammonium nitrate aerosols2018

    • Author(s)
      Cuizhi Sun, and Nobuyuki Takegawa
    • Organizer
      2018 joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mixing state of aerosol particles in Asian outflow observed in the spring of 20172018

    • Author(s)
      Cuizhi Sun, Kouji Adachi, Kentaro Misawa, Joe H.C. Cheung, Charles C.K. Chou, and Nobuyuki Takegawa
    • Organizer
      10th International Aerosol Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Calibration of the laser induced incandescence-mass spectrometric analyzer (LII-MS) using polydisperse aerosol particles2017

    • Author(s)
      Cuizhi Sun, and Nobuyuki Takegawa
    • Organizer
      AAAR 36th Annual Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 粒子トラップ-レーザー脱離質量分析計を用いた硝酸アンモニウム粒子の定量2016

    • Author(s)
      大泉 智隆, 竹川 暢之, 小澤 優哉
    • Organizer
      第33回エアロゾル科学・技術研究討論会
    • Place of Presentation
      大阪府立大学 (大阪府 堺市)
    • Related Report
      2016 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2022-08-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi