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A Study and Analysis on Tritium Radioactivity and Environmental Behavior in Domestic NPPs
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 Title & Authors
A Study and Analysis on Tritium Radioactivity and Environmental Behavior in Domestic NPPs
Han, Sang Jun; Lee, Kyeong Jin; Yeom, Jeong Min; Shin, Dae Tewn;
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Several analyses on tritium that is the largest release of gas or liquid radioactive waste from domestic PWR and PHWR NPPs were carried out, such as release comparison, directional frequency of wind and tritium behavior changes in environmental samples. First of all, analysis result showed that tritium released from PHWR was more than ten times as gas and double to three times as liquid in comparison to PWR in 2013. Independent release management in NPP units is needed to precisely control and analyze tritium, since there were 2 units of some NPPs having the same amount of release during analysis. In analysis on frequency of wind direction, average range showed 1.7 to 11.5% by 16-point compass. In case of analysis on sampling points by wind direction, Result showed most of the sampling points are right in places. However, There are some areas needed to examine. In analysis on tritium concentration changes in environmental samples, tritium concentration near NPPs was higher than one far away from NPPs. In case of environmental samples far from PWR, a trace of tritium occur. While, tritium concentration near NPPs was more than or equal to one further from PHWR. In conclusion, tritium occurs considerably in PHWR and is lower than standard in samples. but, it is still detected. Therefore, it is needed to strengthen control in system in NPPs and to consistently monitor tritium in environment.
Radioactive waste;Tritium;Release;Directional frequency of wind;Environmental sample;
 Cited by
Cho YW. A Study on the Tritium Distribution in Some Environmental Samples-Rice, Chinese cabbage, Pine needles. Master's Thesis, Graduate School, Chungbuk National University. 1992.

Kim HG, Gong TY, Jeong WT. Trends and Issues in Metabolism and Dosimetry for Tritium Intake. J Radiat Prot Res. 2011;36(2):99-106.