芳香族炭化水素の大気酸化による二次有機エアロゾル生成 Secondary Organic Aerosol Formations during Atmospheric Oxidation of Aromatic Hydrocarbons

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The photooxidation of aromatic hydrocarbons (AHCs) is one of the potential sources of secondary organic aerosol (SOA) in urban air, but the explicit reaction mechanisms of these SOA formations have not been elucidated. In this study, we measured SOA yields during oxidation of four AHCs from a series of laboratory experiments. The SOA yields from toluene, <I>p</I>-ethyltoluene, <I>p</I>-xylene and 1,3,5-trimethylbenzene were 0.07-0.11, 0.06-0.10, 0.02-0.04 and 0.02-0.03, respectively; the SOA yield from each AHC depended on the initial AHC concentration. On the basis of a previous reaction mechanism, in which condensable products are assumed to be formed by secondary reactions of primary oxidation products with ozone, the SOA concentrations were calculated and compared with the experimental results. As for each AHC, SOA yields measured at different initial AHC concentrations could be explained by assuming that the overall yield of primary oxidation products which forms SOA is constant being independent of the initial AHC concetration.

収録刊行物

  • エアロゾル研究 = Journal of aerosol research  

    エアロゾル研究 = Journal of aerosol research 23(2), 86-93, 2008-06-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10021918993
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    09122834
  • NDL 記事登録ID
    9553256
  • NDL 雑誌分類
    ZP5(科学技術--化学・化学工業--化学工学)
  • NDL 請求記号
    Z17-1062
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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