Ecological Risk Assessment of Chemicals of Concern for Initiation of Ecorisk-based Water Quality Standards in Korea

생태수질기준설정을 위한 대상물질의 생태위해성 평가

  • An, Youn-Joo (Department of Environmental Science, Konkuk University) ;
  • Nam, Sun-Hwa (Department of Environmental Science, Konkuk University) ;
  • Kim, Yong-Hwa (Environmental Toxicology division, Korea Institute of Toxicology, KRICT)
  • 안윤주 (건국대학교 환경과학과) ;
  • 남선화 (건국대학교 환경과학과) ;
  • 김용화 (한국화학연구원 안전성평가연구소 환경독성시험연구부)
  • Received : 2008.07.02
  • Accepted : 2008.08.19
  • Published : 2008.09.30

Abstract

Current water quality standard (WQS) in Korea is based on the protection of human health, not considering the protection of aquatic organisms. Most of chemicals can be toxic to ecological biota as well as human. Health of aquatic biota is closely related to the human health via food chain, therefore ecological risk based-WQS needs to be developed to protect the aquatic ecosystem. In this study, we selected the 31 chemicals in the Project entitled 'Development of integrated methodology for evaluation of water environment'. The methodology for calculating water quality criteria was derived from the Australian and New Zealand processes for deriving guideline trigger value for aquatic ecosystem. The available ecotoxicity data were collected from US EPA's ECOTOXicology Database (ECOTOX), TOX-2000 Database, European Chemicals Bureau (ECB)'s International Uniform Chemical Information Database (IUCLID) and Environmental Protection Agency (US EPA)'s report 'Ambient Water Quality Criteria (AWQC)'. The aquatic toxicity data for the Korean species were selected for risk assessment to reflect the Korean water environment. The monitoring values were calculated from the water quality monitoring data four main Korean rivers. We suggested the order of priorities of chemicals based on ecological risk assessment. We expect that these results can be useful information for establishing the WQS for the protection of aquatic ecosystem.

Acknowledgement

Supported by : 국립환경과학원

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