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2004 Fiscal Year Final Research Report Summary

Chemical Analysis on Polycyclic Aromatic Hydrocarbons and Nitroarenes in Atmosphere in the Area of Pan-Japan Sea, and Removal of these Organic compounds with Iron Oxides

Research Project

Project/Area Number 14208073
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionToyama National College of Technology

Principal Investigator

IWAI Masao  Toyama National College of Technology, Department of Ecomaterials Engineering, Professor, 環境材料工学科, 教授 (80042828)

Co-Investigator(Kenkyū-buntansha) CHOHJI Tetsuji  Toyama National College of Technology, Department of Ecomaterials Engineering, Professor, 環境材料工学科, 教授 (80092790)
HAYAKAWA Kazuichi  Kanawaza University, Faculty of Pharmaceutical Science, Professor, 薬学部, 教授 (40115267)
TABATA Masahiro  Toyama National College of Technology, Department of Ecomaterials Engineering, Associate Professor, 環境材料工学科, 助教授 (00271594)
Project Period (FY) 2002 – 2004
KeywordsPolycyclic Aromatec Hydrocarbons / Nitroarenes / Pan-Japan-Sea Area / Atmospheric Environment / Iron Oxides / Catalysis
Research Abstract

Analysis of polycyclic aromatic hydrocarbons (PAHs) and nitropolycyclic aromatic hydrocarbons (nitroarenes) in the atmosphere in the area of Pan-Japan-Sea and removal of these organic compounds with iron oxides have been investigated. Concentration of these compounds in the atmosphere of Toyama, Kanazawa, Vladivostok and Shenyang show ed differences in the amount and the composition. The concentration of these organic compounds in Shenyang and her suburb was more than 10 times higher than that in Kanazawa. The ratio of 1-nitropyrene, one of the nitroarenes, to pyrene, one of the PAHs, suggested that main source of these compounds in Shenyang was coal combustion, though in Kanazawa and Toyama the main source is diesels-engine exhaust. Iron oxide (haematite) reacted with these compounds in helium stream at 300 〜 700 ℃ and removed them in the form of blackish particles on the iron oxide, indicating that the iron oxide catalyzed the thermal decomposition of these organic compounds. X-ray study showed that magnetite phase was observed after the reaction of haematite with the organics. This indicates that haematite was partially reduced to magnetite with the organics. By flowing air instead of helium, the organic, compounds were removed completely without forming blackish compounds on iron oxide, suggesting that oxygen in air oxidised the blackish compounds, probably the elementary carbon, and removed from the surface in the form of carbon dioxide. No phase transformation was observed from X-ray analysis of the haematite sample, indicating that haematite was not reduced to magnetite in air stream. Efficiency of removal of nitroarenes were higher than that of PAHs. Induction by nitro group may contributed to enhance the removal efficiency of PAHs.

  • Research Products

    (11 results)

All 2005 2004

All Journal Article (11 results)

  • [Journal Article] Direct-acting mutangenicity of coal burning particulate extracts and contribution of nitropolycyclic aromatic hydrocarbons2005

    • Author(s)
      Taga R.
    • Journal Title

      Mutagen Research (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Simultaneous determination of twenty-one mutagenic nitropolycyclic aromatic hydrocarbons by high-performance liquid chromatography with chemiluminescence detection2005

    • Author(s)
      Tang N.
    • Journal Title

      Luminescence : the Journal of Biological and Chemical Luminescence (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Direct-acting mutagenicity of coal burning particulates extracts and contribution of nitropolycyclic aromatic hydrocarbons2005

    • Author(s)
      Taga R.
    • Journal Title

      Mutagen Research (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Simulateneous determination of twenty-one mutagenic nitropolycyclic aromatic hydrocarbons by high-performance liquid chromatography with chemiluminescence detection2005

    • Author(s)
      Tang N.
    • Journal Title

      Luminescence ; the Journal of Biological and Chemical Luminescence (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Estimation of acid-neutralization of air pollutants by KOSA aerosol particles traveled long distance to Toyama, Japan2004

    • Author(s)
      Chohji T.
    • Journal Title

      Journal of Ecotechnology Research 10

      Pages: 131-133

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 土壌試料中多環芳香族炭化水素の前処理法の比較2004

    • Author(s)
      唐〓
    • Journal Title

      Journal of Ecotechnology Research 10

      Pages: 143-146

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ろ過式降水採取器により採取された降下物中の黄砂エアロゾルに由来する水溶性化学成分2004

    • Author(s)
      丁子哲治
    • Journal Title

      Journal of Ecotechnology Research 10

      Pages: 63-73

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 化学発光検出測定-HPLC法測定による大気中ニトロ多環芳香族炭化水素2004

    • Author(s)
      唐〓
    • Journal Title

      世界科技研究與発展 26

      Pages: 112-119

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Comparison of Pretreatment Methods for Determination of Polycyclic Aromatic Hydrocarbons in Soil Samples (Japanese)2004

    • Author(s)
      Tang N.
    • Journal Title

      ournal of Ecotechnology Research 10

      Pages: 143-146

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Analysis of Soluble Components of Depositions Derived from KOSA Aerosols using Filter-Sampling System2004

    • Author(s)
      Chohji T.
    • Journal Title

      Journal of Ecotechnology Research 10

      Pages: 63-73

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A High-Performance Liquid Chromatography Method for Determination of Atmospheric Nitropolycyclic Aromatic Hydrocarbons using Chemiluminescence Detection2004

    • Author(s)
      Tang N.
    • Journal Title

      World Science-Technology R & D 26

      Pages: 112-119

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2006-07-11  

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