Ecotoxicity Test of Wastewater by a Battery of Bioassay and Toxicity Identification Evaluation

다양한 시험생물종을 이용한 산업폐수 생태독성 평가 및 원인물질 탐색

  • Ryu, Tae-Kwon (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research) ;
  • Cho, Jae-Gu (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research) ;
  • Kim, Kyung-Tae (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research) ;
  • Yang, Chang-Yong (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research) ;
  • Joung, Ki-Eun (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research) ;
  • Yoon, Jun-Heon (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research) ;
  • Choi, Kyung-Hee (Risk Assessment Division, Environmental Health Risk Research Department, National Institute of Environmental Research)
  • 류태권 (국립환경과학원 환경건강위해성연구부 위해성평가과) ;
  • 조재구 (국립환경과학원 환경건강위해성연구부 위해성평가과) ;
  • 김경태 (국립환경과학원 환경건강위해성연구부 위해성평가과) ;
  • 양창용 (국립환경과학원 환경건강위해성연구부 위해성평가과) ;
  • 정기은 (국립환경과학원 환경건강위해성연구부 위해성평가과) ;
  • 윤준헌 (국립환경과학원 환경건강위해성연구부 위해성평가과) ;
  • 최경희 (국립환경과학원 환경건강위해성연구부 위해성평가과)
  • Received : 2010.05.24
  • Accepted : 2010.08.30
  • Published : 2010.09.30

Abstract

Toxicity identification and quantification are important factors to evaluate the effect of industrial effluent on the aquatic environment. In order to measure the potential and real toxicity of mixed chemicals in the effluents, the biological method (i.e., WET test) should be used as well as chemical analysis method. In this study, we conducted WET test for various kinds of industrial effluents using aquatic organisms such as water flea (Daphnia magna), algae (Pseudokirchneriella subcapitata), fish (Oryzias latipes, Danio rerio), and microorganism (Vibrio fisheri). In addition, we carried out chemical analysis and TIE (Toxicity Identification Evaluation) for effluents in order to identify the substances causing toxicity. Among the 30 kinds of wastewater, S13 showed the highest eco-toxicity and $Ca^{2+}$ and $Cl^-$ ion were suspected as major compounds causing toxicity for aquatic organisms. In order to confirm these suspected compounds, various confirmation procedures need to be carried out.

Keywords

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