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ID 43729
本文ファイル
著者
Ozaki, Noriatsu 大学院工学研究科 広大研究者総覧
Takeuchi, Shin-ya
Kojima, Keisuke
Komatsu, Toshiko
Fukushima, Takehiko
キーワード
atmospheric particulate matter
PAHs
sea sediment
toxicity
Vibrio fischeri
NDC
化学
抄録(英)
The concentration of polycyclic aromatic hydrocarbons (PAHs) and the toxicity to marine bacteria (Vibrio fischeri) were measured for the organic solvent extracts of sea sediments collected from an urban watershed area (Hiroshima Bay) of Japan and compared with the concentrations and toxicity of atmospheric particulate matters. Among atmospheric particulate matters, the PAHs concentration was highest in FPM collected during cold seasons. The concentrations of sea sediments were 0.01-0.001 times those of atmospheric particulate matters. 1/EC50 was 1-10 L g-1 PM for atmospheric particulate matters and 0.1-1 L g-1 dry solids for sea sediments. These results imply that toxic substances from atmospheric PM are diluted several tens or hundreds times in sea sediments. The ratio of the 1/EC50 to PAHs concentration ((1/EC50)/16PAHs) was stable for all sea sediments (0.1-1 L μg-1 16PAHs) and was the same in the order of the magnitude as that of FPM and CPM. The ratio of sediments collected from the west was more similar to that of CPM while that of the east was to FPM, possibly because of hydraulic differences among water bodies. The PAHs concentration pattern analyses (principal component analysis and isomer ratio analysis) were conducted and from the results. PAHs pattern of sea sediments was fairly different from that of FPM and CPM. Comparison to previously conducted PAHs analyses suggested that biomass burning residues comprised a major portion of these other sources.
内容記述
This work was supported by Kurita Water and Environmental Foundation and Grant-in-Aid for Scientific Research (C)
掲載誌名
Water Science & Technology
66巻
5号
開始ページ
983
終了ページ
992
出版年月日
2012-07
出版者
IWA Publishing
ISSN
0273-1223
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
(c) IWA Publishing 2012. The definitive peer-reviewed and edited version of this article is published in Water Science & Technology Vol. 66, No. 5, pp.983–992, 2012. doi:10.2166/wst.2012.268 and is available at www.iwapublishing.com.
関連情報URL
部局名
工学研究科



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