Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Accumulation Levels and Distribution Characteristics of Polychlorinated Biphenyls in Crucians and Leopard Frogs from the Nakdong River Basin

낙동강 유역에 서식하는 붕어와 황소개구리 체내의 Polychlorinated biphenyls의 축적도와 분포특성

  • Moon, Ji Yong (Dept. of Chemistry, Pusan National University) ;
  • Lee, Sung In (Dept. of Chemistry, Pusan National University) ;
  • Song, Heeyoung (Dept. of Chemistry, Pusan National University) ;
  • Lee, Kyoung Jin (Dept. of Chemistry, Pusan National University) ;
  • Choi, Kyunghee (Risk Assessment Division, National Institute of Environmental Research) ;
  • Jeong, Gi Ho (Dept. of Chemistry, Pusan National University)
  • Received : 2004.05.13
  • Accepted : 2004.06.11
  • Published : 2004.08.25
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Abstract

We collected crucians (Carassius auratus) and leopard frogs(Rana pipiens) along the Nakdong River and the basin area at five locations from Koomi to Nakdong-estuary. The muscular tissue were separated and a GC-MSD system was used for quantification of PCBs. The 62 PCB congeners which represent total PCB levels were selected as analytes. We determined concentrations of PCBs and studied distribution characteristics by individual congeners and homologs. In the crucian, 24 congeners were detected and total PCB levels ranged from 0.74 to 5.41 ng/g wet weight. In the leopard frog, however, only 2 congeners were detected from Nakdong estuary only. The PCB level was 0.24 ng/g wet weight, around 22 times lower than the crucians. The PCB 153 showed the highest concentrations in the congeners and penta- and hexa-CBs showed the strong predominance which accounted for 78% of the total PCBs.

본 연구에서는 낙동강과 그 유역에 서식하는 붕어와 황소개구리 체내의 polychlorinated biphenyls (PCBs)의 축적도와 분포특성을 조사하였다. 낙동강의 구미부터 하구언까지 모두 5개 지점에서 붕어와 황소개구리를 채집하였으며, 이들의 근육 부분을 최종 분석시료로 하였다. PCBs의 정량분석은 GC-MSD 시스템으로 처리하였으며, PCBs 총농도를 대변할 수 있는 62개 congener를 분석항목으로 선정하였다. 붕어에서는 모두 24개의 congener가 검출되었고 총 PCBs 농도는 0.74~5.41 ng/g wet weight 범위로 나타났다. 황소개구리에서는 낙동강 하구언 1개 지점에서 단지 2개의 congener가 검출되었고 그 농도도 0.24 ng/g wet weight로서 붕어보다 약 22배 정도 낮게 검출되었다. 전체적으로, PCB 153이 가장 높게 검출된 congener이고, penta- 및 hexa-CBs가 총 PCBs의 78%를 차지하였다.

Keywords

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