Radioactivity in the sediments of central Adriatic

Abstract

       Gammaspectrometric measurement of samples were made with 1.95 KeV resolution and 25% efficiency HPG detector at 1.33 MeV, connected to the 4096-channel analyser and computer. Analysis of results shows that content of the natural radionuclides of the uranium and thorium families is aproximately the same in all of the six tested locations.

      The most dominant among natural radionuclides is K-40. The highest value for K-40 (613.5 Bq/kg) was found at the location 16 and lowest (71.40 Bq/kg) at the location 20A.

      Fission radionuclides Cs-137 and Cs-134 were found in all of the tested sediments samples. Their content ranges from 0.27 to 6.07 Bq/kg for Cs-137, and from 1.63 to 2.92 Bq/kg for Cs-134.