Toxicity Characterization of Urban River Sediments Using Bioassay with Ostracod
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- WATANABE Haruna
- Graduate School of Engineering, The University of Tokyo
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- NAKAJIMA Fumiyuki
- Environmental Science Center, The University of Tokyo
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- KASUGA Ikuro
- Graduate School of Engineering, The University of Tokyo
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- FURUMAI Hiroaki
- Graduate School of Engineering, The University of Tokyo
Bibliographic Information
- Other Title
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- カイミジンコを用いたバイオアッセイによる都市河川底泥の毒性要因の推定
- カイミジンコ オ モチイタ バイオアッセイ ニ ヨル トシ カセン テイデイ ノ ドクセイ ヨウイン ノ スイテイ
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Abstract
To protect the aquatic ecosystem, it is important to evaluate the toxicity of contaminated sediments. Moreover, the identification of chemical compounds responsible for the toxicity is needed for effective remediation. In this study, we aimed to identify the principal toxicants of urban river sediments, applying Toxicity Identification Evaluation (TIE) methods to the toxicity test with an ostracod (a benthic crustacean). The toxicity test was conducted using sediments amended with three adsorbents: Zeolite, Chelex-100 and Ambersorb-572. Four of the nine urban river sediment samples showed lethal toxicity to the ostracod, but none of the three adsorbents reduced the mortality of the ostracod. Growth inhibition was observed in all the samples; however, the addition of the carbonaceous adsorbent Ambersorb-572 suppressed the growth inhibition in the 6 samples. This indicates that hydrophobic substances in the sediments inhibit the growth of the ostracod.
Journal
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- Journal of Japan Society on Water Environment
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Journal of Japan Society on Water Environment 31 (11), 671-676, 2008
Japan Society on Water Environment
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Details 詳細情報について
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- CRID
- 1390001205080545536
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- NII Article ID
- 10024903621
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- NII Book ID
- AN10372439
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- COI
- 1:CAS:528:DC%2BD1cXhsFSns7nL
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- ISSN
- 18813690
- 09168958
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- NDL BIB ID
- 9714809
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed