Natural and Artificial Radionuclides Distribution in Soil in Murfatlar Area, Dobrogea Region, Romania

摘要

In this paper we intend to study the distribution of natural and artificial radionuclides in a small area, namely Murfatlar vineyard Romania. The Research and Development Station for Vineyard and Vinification covers an area of about 160 ha. Geographically, the investigated area is located in the South East of Romania in Dobrogea, about 18 km from the Black Sea. From this place we took 82 soil samples, from surface to a depth of 10 cm. Soil samples, after conditioning, were measured by high resolution gamma spectrometry in underground laboratory of IFIN-HH situated in Unirea salt mine from in Slanic-Prahova. In these samples we determined the specific activity of Cs137, K40, Ac228 and Ra226. For Cs137 the average value is of 6.3 ± 1.8 Bq/kg and for K40 we have average value of 582 ± 64 Bq/kg. The average values for Ra226 is 45.9 ± 5.4 Bq/kg and for Ac228 is 44.1 ± 3.9 Bq/kg. Also, the data were statistically analyzed using three different tests for normal distribution.