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Estimation of Tritium Concentration in the Environment based upon Global Tritium Cycling Model  

Choi, Heui-Joo (Korea Atomic Energy Research Institute)
Lee, Han-Soo (Korea Atomic Energy Research Institute)
Kang, Hee-Suk (Korea Atomic Energy Research Institute)
Lee, Chang-Woo (Korea Atomic Energy Research Institute)
Publication Information
Journal of Radiation Protection and Research / v.28, no.1, 2003 , pp. 1-8 More about this Journal
Abstract
The periodic safety review of operational nuclear power plants requires that the plants should keep a well organized environmental monitoring program. The past records of environment monitoring data were analyzed. and the tritium concentrations of the samples in the surface and ground water around Kori site were measured. It was shown that the tritium concentrations around the Kori site were slightly higher than that of natural background. The change of background tritium concentration was estimated through a numerical modeling. Two different versions of 7 compartments model - the world and the northern hemisphere - defined in NCRP-62 were modeled for the global tritium cycling. The numerical solution of the model was obtained using a computer program, AMBER. The four cases of tritium source-terms into the atmosphere were considered. The results showed that the tritium concentration in the surface soil water was higher than that in sea water or surface stream water. Also, it was shown that the tritium produced by the interaction between cosmic rays and the gases were the major source of tritium, and the tritium produced by nuclear weapon test decreased considerably.
Keywords
tritium; environment; global circulation; dynamic compartment model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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