The distribution of environmental tritium and the correlation coefficients between tritium concentrations in several environmental samples and the emissions of tritiated water vapor from Wolsong NPP 1 were studied. The annual mean concentrations of atmosheric HTO were in the range 1.31-29.2 Bq m~-3 and the long-term atmospheric dilution factors were in the range 10~-7-10~-6 sm~-3.
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