한반도 주변 해양생물에서 Pu-239+240 과 Po-210 의 농축

Title
한반도 주변 해양생물에서 Pu-239+240 과 Po-210 의 농축
Alternative Title
Accumulation of 239+240Pu and 210Po in the marine biota around Korean Peninsula
Author(s)
김석현; 홍기훈; 이현미; 김영일; 조보은; 박희영
KIOST Author(s)
Kim, Suk Hyun(김석현)Lee, Hyun Mi(이현미)KIM, YOUNG IL(김영일)
Alternative Author(s)
김석현; 홍기훈; 이현미; 김영일; 조보은; 박희영
Publication Year
2014-10-13
Abstract
The concentrations of 239+240Pu and 210Po were determined in the marine biota of several tropic levels around Korean Peninsula to understand the bioaccumulation of these alpha emitter radionuclides. Marine biota including phytoplankton, zooplankton, macroalgae, crustaceans, mollusks, surface water fish, bottom water fish and cephalopods were collected in 2014. The concentrations were measured in the parts of skin, muscle and internal organs if possible to be separated. The concentrations of 239+240Pu in collected biota were the highest in phytoplankton with 68.5±0.3 mBq/kg• ww and had descending order of phytoplankton > zooplankton (8.73±0.03) > abalone (5.38±0.02) > sea mustard (0.821±0.004) > laver (0.448±0.002) > flat fish (0.368±0.010) > anchovy (0.305±0.001) > mackerel (0.281±0.010) > squid (0.274±0.010) > red-banded lobster (0.139±0.010) : (unit: mBq/kg• ww). This indicates that 239+240Pu is highly accumulated in phytoplankton but the accumulation factor does not increase in upper tropic levels. The concentrations of 210Po in phytoplankton and zooplankton were 137±4 and 111±4 Bq/kg• ww, respectively. The concentrations of 210Po in the whole body of anchovy preying on zooplankton was 392±13 Bq/kg• ww which is higher than that in zooplankton. The concentrations of 210Po in the muscle of squid, abalone, red-banded lobster, mackerel and flat fish were 8.6±0.3, 3.4±0.1, 2.8±0.1plankton, macroalgae, crustaceans, mollusks, surface water fish, bottom water fish and cephalopods were collected in 2014. The concentrations were measured in the parts of skin, muscle and internal organs if possible to be separated. The concentrations of 239+240Pu in collected biota were the highest in phytoplankton with 68.5±0.3 mBq/kg• ww and had descending order of phytoplankton > zooplankton (8.73±0.03) > abalone (5.38±0.02) > sea mustard (0.821±0.004) > laver (0.448±0.002) > flat fish (0.368±0.010) > anchovy (0.305±0.001) > mackerel (0.281±0.010) > squid (0.274±0.010) > red-banded lobster (0.139±0.010) : (unit: mBq/kg• ww). This indicates that 239+240Pu is highly accumulated in phytoplankton but the accumulation factor does not increase in upper tropic levels. The concentrations of 210Po in phytoplankton and zooplankton were 137±4 and 111±4 Bq/kg• ww, respectively. The concentrations of 210Po in the whole body of anchovy preying on zooplankton was 392±13 Bq/kg• ww which is higher than that in zooplankton. The concentrations of 210Po in the muscle of squid, abalone, red-banded lobster, mackerel and flat fish were 8.6±0.3, 3.4±0.1, 2.8±0.1
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25970
Bibliographic Citation
PICES-2014, pp.159, 2014
Publisher
PICES
Type
Conference
Language
English
Publisher
PICES
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