Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Comparative Study of Probabilistic Ecological Risk Assessment (PERA) used in Developed Countries and Proposed PERA approach for Korean Water Environment

확률생태위해성평가(PERA) 선진국 사례분석 및 국내수계에 적합한 PERA 기법 제안

  • An, Youn-Joo (Department of Environmental Science, Konkuk University) ;
  • Nam, Sun-Hwa (Department of Environmental Science, Konkuk University) ;
  • Lee, Woo-Mi (Department of Environmental Science, Konkuk University)
  • Received : 2009.02.13
  • Accepted : 2009.05.04
  • Published : 2009.07.30
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Abstract

Probabilistic Ecological risk assessment (PERA) is extensive approach to qualify and quantify risk on the multi species based on species sensitivity distribution (SSD). As a while, deterministic ecological risk assessment (DERA) considers the comparison of predicted no-effect concentration (PNEC) and predicted exposure concentration (PEC). DERA is used to determine if there is potential risk or no risk, and it doesn't consider the nature variability and the species sensitivity. But PERA can be more realistic and reasonable approach to estimate likelihood or risk. In this study, we compared PERA used in developed countries, and proposed PERA applicable for the Korean water environment. Taxonomic groups were classified as "class" level including Actinopterygill, Branchiopoda, Chlorophyceae, Maxillapoda, Insects, Bivalvia, Gastropoda, Secernentea, Polychaeta, Monocotyldoneae, and Chanophyceae in this study. Statistical extrapolation method (SEM), statistical extrapolation method $_{acutechronicratio}$ ($SEM_{ACR}$) and assessment factor method (AFM) were used to calculate the ecological protective concentration based on qualitative and quantitative levels of taxonomic toxicity data. This study would be useful to establish the PERA for the protection of aquatic ecosystem in Korea.

Keywords

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