Environmental Analysis Health and Toxicology

The Korean Society of Environmental Health and Toxicology (환경독성보건학회)
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Acute Toxicity Test of Heavy Metals Using Korean Freshwater Shrimp, Neocardina denticulata

국내 담수새우인 새뱅이 (Neocardina denticulata)를 이용한 중금속의 급성독성시험

  • Ryu, Ji-Sung (Environmental Exposure Assessment Division, National Institute of Environmental Research) ;
  • Kim, Eun-Kyoung (Environmental Exposure Assessment Division, National Institute of Environmental Research) ;
  • Moon, Ye-Ryeon (Environmental Exposure Assessment Division, National Institute of Environmental Research) ;
  • Kim, Hyun-Mi (Environmental Exposure Assessment Division, National Institute of Environmental Research) ;
  • Kim, Hak-Joo (Environmental Exposure Assessment Division, National Institute of Environmental Research) ;
  • Choi, Kyung-Hee (Environmental Exposure Assessment Division, National Institute of Environmental Research)
  • 류지성 (국립환경과학원 환경노출평가과) ;
  • 김은경 (국립환경과학원 환경노출평가과) ;
  • 문예련 (국립환경과학원 환경노출평가과) ;
  • 김현미 (국립환경과학원 환경노출평가과) ;
  • 김학주 (국립환경과학원 환경노출평가과) ;
  • 최경희 (국립환경과학원 환경노출평가과)
  • Published : 2007.06.30
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Abstract

Indigenous species means a species that is likely, due to historical presence, to occur at a specified site for some portion of its life span. Therefore, indigenous species can be useful as an indicator to assess environmental risk caused by hazardous chemicals in a specific site. So far a few toxicity studies using freshwater species which are indigenous to Korea have been carried out. In this study, a freshwater shrimp (Neocardina denticulata) indigenous to Korea was used for acute toxicity test of heavy metals. Neocardina denticulata were exposed to cadmium chloride $(CdCl_2)$, copper chloride $(CuCl_2)$ and zinc chloride $(ZnCl_2)$ using automatic flow-through system for 96 hours. The 96h LC50s were calculated as 0.043 $(0.042{\sim}0.045)mg\;CdCl_2/L,\;0.104(0.098{\sim}0.113)mg\; CuCl_2/L\;and\;2.021\;(1.633{\sim}2.594)mg\;ZnCl_2/L$. When compaired with some international standard species such as medaka(Oryzias latipes), Neocardina denticulata had high sensitivity. Therefore, this study suggested that Neocardina denticulata have possibilities for a sensitive test species to test heavy metal toxicity in aqua-system.

Keywords

References

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