大気・水環境中のPAHsの異性体比を用いた発生源の検討  [in Japanese] PAH diagnostic ratio analysis in atmospheric and aquatic environments for the pollution emission source identification  [in Japanese]

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Abstract

異なる発生源と環境フィールドで5つのPAHの異性体比を用い発生源と大気から水系へのPAHsの流出の過程を検討した.異なるフィールドでそれぞれの異性体比の違いを効果量<i>d</i>により算定し,その平均値を取ることで発生源と環境フィールド,またはフィールド同士の類似性を評価した.解析により,多くのフィールドでディーゼルまたはバイオマス燃焼の寄与が大きいと評価された.広島湾底質への負荷源と経路を考察し,西部はディーゼルとバイオマスの両方が,東部はバイオマスの影響が大きいと考えられた.

 The atmospheric and aquatic PAHs transference processes were discussed using five isomer ratios values of PAHs. The similarity of a pair of datasets of different environment fields or pollution sources for each isomer ratio were calculated as effect size <i>d</i>, and the mean of the <i>d</i> values of five isomer ratios were applied as the index of similarity. From the analysis, diesel emission and/or biomass burning resideus were estimated to be major contributions for almost all the datasets of environmental samples. The pollution loading and path to the PAHs of coastal sediments in Hiroshima bay area were examined and diesel and biomass buring were considered to be major sources for the West side area of the bay and the biomass buring was considered to be for the East side area.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

    Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 71(7), III_151-III_159, 2015

    Japan Society of Civil Engineers

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