Accumulations of artificial radionuclides 137Cs and 239,240Pu in anchovy from the Korean seas

Title
Accumulations of artificial radionuclides 137Cs and 239,240Pu in anchovy from the Korean seas
Author(s)
Lee, Hui Su; Kim, Intae; Lee, Jaeeun; Lee, Hyun Mi; Kim, Suk Hyun
KIOST Author(s)
Kim, Intae(김인태)Lee, Hyun Mi(이현미)Kim, Suk Hyun(김석현)
Alternative Author(s)
이희수; 김인태; 이재은; 이현미; 김석현
Publication Year
2021-12-08
Abstract
We investigated the accumulation patterns of the artificial radionuclides 137Cs and 239,240Pu in anchovy –categorized into four groups by size– from Korean seas. The activities of 137Cs and 239,240Pu were in the ranges of 74–137 mBq kg-1 and 0.27–3.21 mBq kg-1, respectively.
They generally increased with increasing size (except for 239,240Pu in large anchovy), indicating radionuclide accumulation by seawater uptake through respiratory and/or higher feed capacity as a manifestation of growth. However, the activity of 239+240Pu decreased sharply in
large anchovy. The calculated concentration factors (CFs) of 137Cs in anchovy were 10.9–20.2, which are an order of magnitude lower than those in other marine organisms. However, the CFs of 239,240Pu in adult anchovy were 14.0–162.8, which are significantly higher than those in
other fishes and comparable (or even higher) to the IAEA recommendation values. The annual effective dose (AED) rates of 137Cs and 239+240Pu for anchovy consumption (per person) in South Korea were estimated to be 3.7×10-6–6.9×10-6 mSv yr-1 and 0.26×10-6–
3.10×10-6 mSv yr-1, respectively. The AED from anchovy consumption is insignificant relative to that of natural radionuclides.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41857
Bibliographic Citation
ENVIRA 2021 CONFERENCE, 2021
Publisher
ENVIRA
Type
Conference
Language
English
Publisher
ENVIRA
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