Abstract
In this paper, an estimation method of gross beta activity from radionuclide concentrations in river water based on decay data was presented by introducing a concept of gross beta conversion factor. With the factors, the gross beta activities of some downstream water intakes and the locations downstream 1 km away from a planning nuclear power plant in inland China were estimated. The results indicated that the gross beta activities in the receiving river water due to the liquid effluent discharge of the nuclear power plant with 4 CPR 1,000 units during normal operation are lower than the recommended guideline level of 1 Bq L from the legal standard on these sites.
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