Ecotoxicity Assessment of Industrial Effluent in Korea

산업폐수 방류수의 생태독성 평가

  • Oh, Kyung Taek (Ecotoxicology Research Team, Korea Institute of Toxicology) ;
  • Kim, Ji Won (Ecotoxicology Research Team, Korea Institute of Toxicology) ;
  • Kim, Woo Kun (Ecotoxicology Research Team, Korea Institute of Toxicology) ;
  • Lee, Soon Ae (Ecotoxicology Research Team, Korea Institute of Toxicology) ;
  • Yun, Hong Gil (Ecotoxicology Research Team, Korea Institute of Toxicology) ;
  • Lee, Sung Kyu (Ecotoxicology Research Team, Korea Institute of Toxicology)
  • 오경택 (한국화학연구원부설안전성평가연구소) ;
  • 김지원 (한국화학연구원부설안전성평가연구소) ;
  • 김우근 (한국화학연구원부설안전성평가연구소) ;
  • 이순애 (한국화학연구원부설안전성평가연구소) ;
  • 윤홍길 (한국화학연구원부설안전성평가연구소) ;
  • 이성규 (한국화학연구원부설안전성평가연구소)
  • Received : 2005.08.01
  • Accepted : 2005.09.12
  • Published : 2006.01.30

Abstract

Ecotoxicity assessments of 90 selected effluents of 22 industry types from 2002 to 2004 in Korea were evaluated by a toxic battery of bioassay test using fish Oryzias latipes, invertebrate Daphnia magna, algae Selenastrum capricornutum and bacteria Vibrio fischeri with the physicochemical measurement items and permit concentrations on the present Water Quality Conservation Act in Korea. Total toxic unit (${\Sigma}TU$) of 8 industry types of 22 industry types by the toxic battery appeared in order of the value site as follows; Pigment Dye Manufacturing (${\Sigma}TU$ 217.1) > Textile and Dye (${\Sigma}TU$ 39.3) > Semiconductor Electronic Manufacturing (Small) (${\Sigma}TU$ 25.6) > Wastewater and Sewage Treatment Plants (${\Sigma}TU$ 25.4) > Coating (${\Sigma}TU$ 23.8) > Leather Skin Manufacturing (${\Sigma}TU$ 18.0) > Synthetic Resin Manufacturing (${\Sigma}TU$ 15.6) > Assemble Metal Manufacturing (${\Sigma}TU$ 10.7). Our results demonstrate that ecotoxicity assessment, by bioassay test, is effective and practical for industrial wastewater management for 90 selected effluents with the limitation of the physicochemical permit. Among 90 effluents, 9 samples failed physicochemical permit limitation and 81 passed it. In result of ecotoxicity assessment of 90 effluents by the toxic battery, 76 effluents exhibited ecotoxicity and the others did not. The physicochemical measurement items and permit concentrations on the present Water Quality Conservation Act in Korea were low related to the ecotoxicity value by the toxic battery and appeared limited for water quality management to water-ecosystem and environment-friendly management of water.

Keywords

Acknowledgement

Supported by : 환경부

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