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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Education > Bulletin > Bulletin of Faculty of Education, Nagasaki University. Natural science > No. 70 >

東京湾堆積物中の陸起源有機物と脂質組成(東 幹夫・尾崎 洋二教授退官記念)


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Title: 東京湾堆積物中の陸起源有機物と脂質組成(東 幹夫・尾崎 洋二教授退官記念)
Other Titles: Land derived Organic Matter and Lipid Compounds in the Sediments from the Tokyo Bay
Authors: 近藤, 寛 / 倉橋, 淑子 / 石渡, 良志
Authors (alternative): Kondo, Hiroshi / Kurahashi, Toshiko / Ishiwatari, Ryoshi
Issue Date: 26-Mar-2004
Citation: 長崎大学教育学部紀要. 自然科学. vol.70, p.9-24; 2004
Abstract: Muddy sediment samples from the Arakawa river and the Tokyo bay were analyzed for n-alkanes, n-alcoholes, 4-methyl-sterols and 4-desmethyl-sterols. Broad humps that are related to oil pollution were found in the hydrocarbon fraction of the sediment samples. The content of n-alkanes, n-alcoholes, 4-desmethyl-sterols of 14 samples averaged 3.93μg/g, 18.2μg/g, 23.03μg/g, respectively. Larger contents occur in the sediments from the Tokyo bay than the Arakawa river. In the triangular diagram of C_<27>, C_<28>, C_<29>-steroles, the sediments of the Arakawa river are plotted on open marine and estuarine or bay, the sediments of the Tokyo bay are plotted on estuarine or bay and open marine. The distribution pattern-1; the contents of coprostanol (μg/g), 4-desmethyl -sterols (%) ; G, M, N, U, H, S and V (Table 5) are decreased with increasing water depth and father seaward from the coast. Conversely, the contents of 4-desmethyl -sterols (%) ; A, B, E, F, I, J, 1, 0, Q and R (Table 5) are increased. The distribution pattern-2; the highest contents (ug/g) of n-alkanes, n-alco-holes, phytol, dinosterol and 4-desmethyl-sterols are found in the muddy sediments on the central part of the Tokyo bay. L/H and CPI ratio of n-alkanes, n-alcoholes did not show regional trends.
URI: http://hdl.handle.net/10069/6130
ISSN: 13451359
Type: Departmental Bulletin Paper
Appears in Collections:No. 70

Citable URI : http://hdl.handle.net/10069/6130

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