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大気エアロゾルの性状と二次粒子生成-研究調整

Research Project

Project/Area Number 14048103
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionHiroshima University

Principal Investigator

奥山 喜久夫  広島大学, 大学院工学研究科, 教授 (00101197)

Co-Investigator(Kenkyū-buntansha) 東野 進 (東野 達)  京都大学, 大学院エネルギー科学研究科, 助教授 (80135607)
坂本 和彦  埼玉大学, 大学院理工学研究科, 教授 (20111411)
Project Period (FY) 2002 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2005: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2004: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥700,000 (Direct Cost: ¥700,000)
Keywords大気エアロゾル / 無機エアロゾル / 含炭素エアロゾル / 二次粒子生成・成長機構 / 有機炭素(OC) / 元素状炭素(EC) / 化学組成 / 光学特性 / 環境技術 / 計測工学 / 大気汚染防止・浄化 / 大気現象 / 二次粒子生成
Research Abstract

研究項目A02の研究タイトルは、「大気エアロゾルの性状と二次粒子生成」で、この研究課題について、計画研究と公募研究の進行状況を以下のように調整した。
それぞれの計画研究の研究計画・方法を要約すると以下のようになる。
1)無機エアロゾル測定法の開発と性状特性の解明
平成16年度の研究課題の継続に加え、個別液滴性状解析のための捕集および分析法を開発した。具体的には、高分子ポリマーレプリカ法及び凍結法による固定化・安定化の改良、捕集、レプリカ作成、ハンドリング、貯蔵法の検討、SR-X線分光顕微鏡を用いた個別液滴のサイズ、化学状態の非破壊測定を行なった。さらに、本研究で開発した分析手法をベースに他の計画研究と協力した集中観測を適宜実施した。
2)含炭素エアロゾル測定法の開発と性状特性の解明
含炭素粒子測定装置によるフィールド測定、都市部と後背地における粒度別粒子の吸湿性・溶解性の調査、有機炭素粒子の粒度分布と光学特性の関係の調査、炭素粒子の発生源別寄与率と光学特性の検討、自然起源・人為起源炭化水素混合系からの二次生成有機炭素粒子の吸湿性・溶解性の調査を行い、また研究成果の取りまとめを行った。
3)二次粒子生成・成長機構の解明
平成16年度の研究の継続に加え、開発した装置を大気環境下の測定に実用化し、室内でのモデル実験の結果と併せて、粒子生成速度および粒子生成機構を明らかにした。また、平成16年度までの計算、実験結果を踏まえ、溶液内反応の反応速度論的知見を組み合わせて、エアロゾル粒子と大気化学種の相互作用と、表面不均一反応に関する速度過程を解明した。最終的に、大気環境下での微粒子の発生、成長、大気化学反応への影響のモデル化をすすめ二次粒子エアロゾルが大気環境に及ぼす化学的側面および大気環境インパクトを明らかにした。

Report

(4 results)
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (26 results)

All 2006 2005 2004 Other

All Journal Article (19 results) Book (1 results) Publications (6 results)

  • [Journal Article] さいたま市における初冬季の微小粒子中のレボグルコサンと炭素成分2006

    • Author(s)
      萩野浩之
    • Journal Title

      エアロゾル研究 21(印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mutagenic Activity of Atmospheric Ultrafine Particles at a Roadside site and a Suburban Background Site2006

    • Author(s)
      Kawanaka, Y.
    • Journal Title

      Journal of Health Science (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Investigation of variations in suspended particulate matter with enforcement of regulations on diesel vehicle exhaust in suburban Japan2006

    • Author(s)
      Jiang, Z.
    • Journal Title

      JSME Intern.J. (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Comparison of ammonium deposition flux at roadside and at an agricultural area for long-term monitoring : emission of ammonia from vehicles2006

    • Author(s)
      Matsumoto, R.
    • Journal Title

      Water, Air, and Soil Pollution (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Diurnal characteristics of suspended particulate matter and PM_<2.5> in the urban and suburban atmosphere of the Kanto Plain, Japan2006

    • Author(s)
      Sasaki, K.
    • Journal Title

      Water Air and Soil Pollution (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Ambient air measurements of six bifunctional carbonyls in a suburban area2006

    • Author(s)
      Ortiz, R.
    • Journal Title

      Atmospheric Research Journal (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A case study of the size-resolved particles collected at a ground-based site on the west coast of Japan during an Asian dust storm event2005

    • Author(s)
      Ma, C.-J.
    • Journal Title

      Atmos.Environ. 39

      Pages: 739-747

    • Related Report
      2005 Annual Research Report
  • [Journal Article] エアロゾルの光学特性の湿度依存性に関するクロージャー研究2005

    • Author(s)
      隠岐嘉重
    • Journal Title

      環境衛生工学研究 19

      Pages: 15-21

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Experimental and model studies on the size-resolved raindrops collected in the epsiodically yellow rainfall event2005

    • Author(s)
      Ma, C.-J.
    • Journal Title

      エアロゾル研究 20

      Pages: 324-332

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Characteristics and temporal distribution of airborne pollen in an urban area of Japan2005

    • Author(s)
      Ma, C.-J.
    • Journal Title

      J.Korean Soc.Atmos.Environ. 21・E3

      Pages: 107-113

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Single particle analysis for chemical characterization of atmospheric aerosols : Application of x-ray microprobe system and double thin film method2005

    • Author(s)
      Tohno, S.
    • Journal Title

      Environmental Monitoring and Assessment (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] ガスクロマトグラフィー/負イオン化学イオン化タンデム質量分析法による大気浮遊粒子中のニトロアレーンおよび3-ニトロベンズアントロンの定量2005

    • Author(s)
      川中洋平
    • Journal Title

      分析化学 54

      Pages: 685-692

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Vertical difference of PM_<10> and PM_<2.5> in the urban atmosphere of Osaka, Japan2005

    • Author(s)
      Sasaki, K.
    • Journal Title

      Atmos.Environ. 39

      Pages: 7240-7250

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Development of an LDMA-FCE system for the measurement of submicron aerosol particles2005

    • Author(s)
      Manabu Shimada
    • Journal Title

      Journal of Chemical Engineering of Japan 38

      Pages: 34-44

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A case study of the size-resolved particles collected at a ground-based site on the west coast of Japan during an Asian dust storm event2005

    • Author(s)
      Chang Jin Ma
    • Journal Title

      Atmospheric Environment 39

      Pages: 739-747

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A new observation on the phase transformation of TiO_2 nanoparticles produced by a CVD method2005

    • Author(s)
      Chan Soo Kim
    • Journal Title

      Aerosol Science and Technology 39

      Pages: 104-112

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Direct measurement of nucleation and growth modes in titania nanoparticles generation by a CVD method2004

    • Author(s)
      Chan Soo Kim
    • Journal Title

      Journal of Chemical Engineering of Japan 37

      Pages: 1379-1389

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The nature of individual solid particles retained in size-resolved raindrops fallen in Asian dust storm event during ACE-Asia2004

    • Author(s)
      Chang Jin Ma
    • Journal Title

      Atmospheric Environment 38

      Pages: 2951-2964

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Size distributions of mutagenic compounds and mutagenicity in atmospheric particulate matter collected with a low-pressure cascade impactor2004

    • Author(s)
      Youhei Kawanaka
    • Journal Title

      Atmospheric Environment 38

      Pages: 2125-2132

    • Related Report
      2004 Annual Research Report
  • [Book] DEPの計測と課題,「自動車排出ナノ粒子およびDEPの測定と生体影響評価」2005

    • Author(s)
      溝畑 朗
    • Total Pages
      11
    • Publisher
      (株)エヌ・テイー・エス
    • Related Report
      2005 Annual Research Report
  • [Publications] Chan Soo Kim: "Performance evaluation of an improved particle size magnifier (PSM) for single nanoparticle detection"Aerosol Science and Technology. 37. 791-803 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Han Kwon Chang: "Experimental evaluation of the optical properties of porous silica/carbon composite particles"Aerosol Science and Technology. 37. 735-751 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Mikio Kasahara: "Fixation and chemical analysis of single fog and rain droplets"Atmospheric Research. 65. 251-256 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Chang Jin Ma: "Application of polymeric water absorbent film to the study of drop size-resolved fog samples"Atmospheric Environment. 37. 3749-3756 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 坂本和彦: "大気エアロゾルPM2.5の状況-微粒子の健康影響と測定方法"クリーンテクノロジー. 1. 1-5 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hisashi Yokota: "Emissions of organic carbon from 'In-use' diesel vehicles"Journal Aerosol Research, Japan. 18. 40-56 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2002-04-01   Modified: 2018-03-28  

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