Activity concentration of Ra-226 in agricultural soils

The distribution of ''2''2''6Ra in agricultural soils has been studied. Twenty four soil samples were collected to a depth of 20 cm from Aegean Region of Turkey. Activity concentrations of ''2''2''6Ra in samples were determined by a radioanalytical method and measured by using an alpha scintillation detector. The radioanalytical method has been applied for the soil of 1 g to determine of this radioisotope concentration. The both detection and chemical efficiencies were performed using standard radioactive solution of Ra-226. The recovery yield of radiochemically pure ''2''2''6Ra was found to be 90%. The average concentration of ''2''2''6Ra were 0.186 Bq/g and their distribution fitted a normal curve. The data obtained was evaluated to explain of ''2''2''6Ra distribution in the agricultural area and compared with the other results in the literature