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KMID : 0893320100250030207
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Journal of Environmental Toxicology
2010 Volume.25 No. 3 p.207 ~ p.214
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Ecotoxicity Test of Wastewater by a Battery of Bioassay and Toxicity Identification Evaluation
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Ryu Tae-Kwon
Cho Jae-Gu
Kim Kyung-Tae
Yang Chang-Yong
Jung Ki-Eun
Yoon Jun-Heon
Choi Kyung-Hee
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Abstract
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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 talipes, 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 Ca2+ 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.
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KEYWORD
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WET(Whole Effluent Toxicity), TIE(Toxicity Identification Evaluation), Vibrio fischeri, Pseudo-kirchneriella subcapitata, Daphnia magna, Oryzias latipes, Dania rerio
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