Ocean and Polar Research

  • 제38권2호
  • /
  • Pages.139-148
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  • 2016
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  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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DOI QR코드

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제주도 근해 식물플랑크톤-동물플랑크톤-멸치-고등어 영양단계에서 210Pb과 210Po의 생물농축

Bio-accumulation of 210Pb and 210Po within the Trophic Level of Phytoplankton-Zooplankton-Anchovy-Mackerel in the Coastal Water of the Jeju Island, Korea

  • 조보은 (한국해양과학기술원 해양환경방사능연구센터) ;
  • 김석현 (한국해양과학기술원 해양환경방사능연구센터)
  • Cho, Boeun (Marine Radionuclide Research Center, KIOST) ;
  • Kim, Suk Hyun (Marine Radionuclide Research Center, KIOST)
  • 투고 : 2016.04.07
  • 심사 : 2016.06.14
  • 발행 : 2016.06.30
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초록

The activity concentrations of $^{210}Po$ and $^{210}Pb$ within phytoplankton-zooplankton-anchovy-mackerel in the coastal water of the Jeju Island were determined to understand their distribution and bio-accumulation along the trophic level. In the surface water, the total activity concentrations of $^{210}Po$ and $^{210}Pb$ were $0.83{\pm}0.004mBq\;kg^{-1}$ and $1.27{\pm}0.03mBq\;kg^{-1}$. And the dissolved activity concentration of $^{210}Po$ and $^{210}Pb$ were $0.75{\pm}0.06mBq\;kg^{-1}$ and $1.22{\pm}0.09mBq\;kg^{-1}$ respectively. In the phytoplankton, the concentration factor (CF) of $^{210}Po$ and $^{210}Pb$ were $1.5{\times}10^5$ and $2.6{\times}10^4$ shows $^{210}Po$ is 5 times higher compared to $^{210}Pb$. The similar CF factor in the zooplankton of $^{210}Po$ was derived as $1.4{\times}10^5$. The CF of $^{210}Po$ in anchovy was increased twice compared to that in plankton. This is the evidence that there is $^{210}Po$ bio-magnification in the trophic level of plankton-anchovy. However the $^{210}Po$ activity concentration in the muscle tissue of mackerel was one-hundred times lower than that in anchovy. This reflects that in the trophic level of anchovy-mackerel, the bio-accumulation of $^{210}Po$ is decreased. The activity concentrations of $^{210}Po$ in the internal organs of anchovy and mackerel were 8 to 38 times higher than those in muscle tissues. In phytoplankton-zooplankton-anchovy, the CF of $^{210}Pb$ was decreased five times along the trophic level in order. In anchovy-mackerel it was decreased by 30-70%.

키워드

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피인용 문헌

  1. 210 Po in the marine biota of Korean coastal waters and the effective dose from seafood consumption vol.174, 2017, https://doi.org/10.1016/j.jenvrad.2016.11.001