ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
Journal of Nuclear Fuel Cycle and Waste Technology Vol.8 No.3 pp.215-220
버들치를 이용한 수중 동물의 방사성동위원소 전이계수 측정
The Measurement of Radionuclides Concentration Ratio of the Aquatic Animal using the Chinese Minnow(Rhynchocypris Oxycephalus)
An experiment measuring the concentration ratios of 137Cs and 85Sr in fish as an index aquatic animal was performed. The species was Chinese minnow (Rhynchocypris Oxycephalus), a Korean native freshwater species. Chinese minnows were reared in acryl aquarium which was 45 cm wide, 85 cm long and 50 cm high. Water in the aquarium was successively purified using filtering devices attached on the floor and the wall. Fish powder in a particulate form was supplied twice a day for feeding. After a radioactive solution was added to make the initial water concentrations approximately 0.02 μCi/l and 0.1 μCi/l for 137Cs and 85Sr, respectively, the fish and water were sampled 10 times for a month. The concentration ratios were measured to be 0.348lkg-1~ 13.906lkg-1 for 137Cs and 0.474lkg-1~ 13.089lkg-1 for 85Sr.