# 영광 및 울진 원전 주변 논 토양으로부터 벼로의 년차별 $^{90}Sr$ 전이

• Published : 2003.12.30

#### Abstract

Soil blocks were taken into culture boxes from 12 paddy fields within 5 km radii of Yonggwang and Ulchin NPPs and $^{90}Sr$ was applied to the surface water at a pre-transplanting stage and $1{\sim}2$ days before the start of heading. Following the pre-transplanting application, transfer factors were investigated for $2{\sim}4$ years. In the year of application, transfer factors $(m^2\;kg^{-1}-dry)\;of\;^{90}Sr$ applied before transplanting, showing no regionally distinguishable trend, varied with soils by a factor of about 2 with averages of $2.6{\times}10^{-4}$ for hulled seeds and $1.3{\times}10^{-2}$ for straw Transfer factors of $^{90}Sr$ applied shortly before heading were about 2 times greater than those applied before transplanting. Transfer factors tended to decrease with increasing soil pH and exchangeable Ca. Generic values of $^{90}Sr$ transfer factors in the year of deposition were proposed for the Korean paddy fields. In the second year compared with the first year, the transfer factor decreased more in Ulchin soils, which were on the whole higher in sand content, than in Yonggwang soils. For Yonggwang soils as a whole, the annual decrease in transfer factor was well described by an exponential equation with a half-life of about 2.2 years.

#### References

1. 최용호, 임광묵, 황원태, 이한수, 이창우, '원자력 사고후 쌀알과 배추내 $^{90}Sr$$^{137}Cs$ 농도 예측,' 대한방사선방어학회지, 27, 127-146 (2002)
2. Y. H. Choi, C. W. Lee, S. R. Kim, J. H. Lee and J. S. Jo, 'Effect of application time of radionuclides on their root uptake by Chinese cabbage and radish,' J. of Environ. Radioactioity, 39, 183-198 (1998) https://doi.org/10.1016/S0265-931X(97)00052-0
3. 최용호, 임광묵, 박효국, 최희주, 이한수, '고리 및 영광 논토양에 대한 $^{137}Cs$의 모의사고 침적시 토양-벼 전이계수,' 대한방사선방어학회지, 27, 207-215 (2002)
4. 이정호, 이창우, 최용호 등, 섭취 및 호흡에 의한 방사선 내부피폭선량 평가 코드 개발, KAERI/RR-998/90, 한국원자력 연구소 (1991)
5. J. E. Till and H. R. Meyer (Eds.), Radiological Assessment, NUREG/CR- 3332, ORNL-5968, U.S. Nuclear Regulatory Commission (1983)
6. 이은응 등, 4정 수도작, 향문사, 서울 (1996)
7. J. F. Cline and W. H. Rickard, 'Radioactive strontium and cesium in cultivated and abandoned field plots,' Health Pitys., 23, 317-324 (1972)
8. B. Salbu, D. H. Oughton, A. V. Ratnikov, T. L. Zhigareva, S. V. Kruglov, K. V. Petrov, N. V. Grebenshakikova, S. K. Firsakova, N. P. Astasheva, N. A. Loshchilov, K. Hove and P. Strand, 'The mobility of $^{137}Cs$ and $^{90}Sr$ in agricultural soils in Ukraine, Belarus and Russia, 1991' Health Piiys., 67, 518-528 (1994)
9. Y. H. Choi, K. M. Lim, H. G. Park, D. W. Park and W. Y. Lee, 'Long-term behaviors of $^{54}Mn$, $^{60}Co$, $^{85}Sr$ and $^{137}Cs$ in a simulated rice field,' in: Proc. of Intern Symp. on Radiation Safety Management '99, pp. 128-136, Taeion, Korea, Nov. 4-6 (1999)
10. A. Tsumura, M. Komamura and H. Kobayashi, 'Behavior of radioactive Sr and Cs in soils and soil-plant system,' Report of National Institute of Agricultural Science - B, No. 36, pp. 57-113 (1984) (in Japanese)
11. Y. A. Ivanov, N. Lewyckyj, S. E. Levchuk, B. S. Prister, S. K. Firsakova, N. P. Arkhipov, A. N. Arkhipov, S. V. Kruglov, R. M. Alexakhin, J. Sandalls and S. Askbrant, 'Migration of $^{137}Cs$ and $^{90}Sr$ from Chernobyl fallout in Ukrainian, Belarussian and Russian soils,' J. Environ. Radioactivity, 35, 1-21 (1997) https://doi.org/10.1016/S0265-931X(96)00036-7
12. C. W. Francis, Radiostrontium Movement in Soils and Uptake in Plants, TID-27564 (1978)
13. IAEA, Generic Models and Parameters for Assessing the Environmental Transfer of Radionuclides from Routine Releases, Safety Series No. 57, IAEA, Vienna (1982)
14. USNRC, 'Calculation of annual doses to man from routine releases of reactor effluents for the purpose of evaluating compliance with 10 CFR 50,' Appendix I, Regulatory Guide 1.109 (1976)
15. H. M. Squire, 'Long-term studies on strontium-90 in soils and pastures,' Radiat. Bot., 6, 49-67 (1966) https://doi.org/10.1016/S0033-7560(66)80092-3
16. A. L. Kliashtorin, F. A. Tikhomirov and A. I. Shcheglov, 'Lysimetrical study of radionuclides in the forests around the Chernobyl nuclear power plant,' J. Environ. Radioactivity, 24, 81-90 (1994) https://doi.org/10.1016/0265-931X(94)90026-4
17. M. A. Abbazov, I. D. Dergunov and R. G. Mikulin, 'Effect of soil properties on the accumulation of $^{90}Sr$ and $^{137}Cs$ in crops,' Soviet Soil Sci., 10, 52-56 (1978)
18. 김재성, Strontium-90과 cesium-137의 답토양 별 흡.탈착과 수도체의 흡수 양상에 관한 연구, 박사학위논문, 고려대학교 (1985)
19. H. Muller and G. Prohl, 'ECOSYS-87: a dynamic model for assessing radiological consequences of nuclear accidents,' Health Phys., 64, 232-252 (1993)
20. F. W. Whicker and T. B. Kirchner, 'PATHWAY: a dynamic food-chain model to predict radionuclide ingestion after fallout deposition,' Health Phys., 52, 717-737 (1987)
21. 최용호, 조재성, 이창우, 홍광희, 이정호, '벼재배기간중 침적시기에 따른 $^{54}Mn$, $^{60}Co$, $^{85}Sr$, $^{137}Cs$의 뿌리흡수,' 대한방사선방어학회지, 20, 255-263 (1995)
22. A. J. Andersen, 'Influence of liming and mineral fertilization on plant uptake of radiostrontium from Danish soils,' Soil Sci., 95, 52-59 (1963)