Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Toxicity Assessment of Biocide using Chlamydomonas reinhardtii

Chlamydomonas reinhardtii를 이용한 농약의 독성평가

  • Lee, Yong-Doo (Department of Environmental Engineering, Cheju National University) ;
  • Ko, In-Beom (Department of Environmental Engineering, Cheju National University) ;
  • Shin, Woo-Seok (Department of Environmental Engineering, Cheju National University)
  • 이용두 (제주대학교 환경공학과) ;
  • 고인범 (제주대학교 환경공학과) ;
  • 신우석 (제주대학교 환경공학과)
  • Received : 2005.02.07
  • Accepted : 2005.04.25
  • Published : 2005.07.30
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Abstract

The average specific growth rate of C. reinhardtii (${\mu}$) was decreased with increase in biocide concentrations. The toxicity of biocides toward was as follows (in descending order of toxicities): herbicide 〉 pesticide 〉fungicide. $EC_{50}$ in each biocide was 0.0017 mg/L, 1.06 mg/L and 13.3 mg/L for herbicide, pesticide and fungicide respectively. When herbicide and pesticide were mixed, $EC_{50}$ was decreased by $2.7{\times}10^{-7}mg/L$. $EC_{50}$ in effective components of each biocide was 5.26 mg/L, 9.37 mg/L and 20.58 mg/L for herbicide, pesticide and fungicide respectively. Mixed main components of herbicide and pesticide caused to decrease by 3.10 mg/L.

Keywords

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