界面活性剤に対するイカダモ，カブトミジンコ，ゾウミジンコの感受性

DOI
  • 小田 悠介
    信州大学大学院総合医理工学研究科 国立環境研究所環境リスク・健康研究センター
  • 宮原 裕一
    信州大学理学部諏訪臨湖実験所 信州大学山岳科学研究拠点

書誌事項

タイトル別名
  • Sensitivities to surfactants in <i>Desmodesmus subspicatus</i>, <i>Daphnia galeata</i>, and <i>Bosmina longirostris</i>

抄録

<p>We performed algal growth inhibition test on Desmodesmus subspicatus using a cationic surfactant benzalkonium bromide (BZK-Br), and acute toxicity tests on two cladoceran species, Daphnia galeata and Bosmina longirostris, using BZK-Br and an anionic surfactant sodium octyl sulfate (SOS). The 72-h 50% effective concentration (EC50) with 95% confidence interval (CI) of initial BZK-Br to D. subspicatus was 60.3 µg L−1 with 46.4–74.2 µg L−1. The 48-h EC50s (with those CIs) of BZK-Br to D. galeata and B. longirostris, estimated from the geometric mean concentrations, were 40.9 (33.0–48.8) µg L−1 and 80.1 (68.1–92.0) µg L−1, respectively. Unlike BZK-Br, the 48-h EC50s (with those CIs) of SOS to D. galeata (335.9 mg L−1, 248.5–423.3 mg L−1) and B. longirostris (280.0 mg L−1, 211.1–348.9 mg L−1) were comparable. The present results were discussed about the difference in EC50s to similar compounds on standard test organisms. We also mentioned that BZK-Br and SOS concentrations can present below the EC50s in surface water, whereas they can affect biological interactions by interfering with colony formation response in D. subspicatus even at environmentally relevant concentrations.</p>

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390293666570298752
  • DOI
    10.11403/jset.25.61
  • ISSN
    18825958
    13440667
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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