Journal of Radioanalytical and Nuclear Chemistry

, Volume 286, Issue 2, pp 303–308 | Cite as

Natural radionuclides in sediments and rocks from Adriatic Sea

  • Marko Štrok
  • Borut Smodiš
  • Branko Petrinec


During the International Scientific Cruise to Adriatic and Ionian Seas organised by the International Atomic Energy Agency, sediment and rock samples were collected. Sediments were sampled with grab corer at six locations in the Southeast Adriatic Sea. Rocks were collected on three islets in the Adriatic Sea. In the samples, natural radionuclides 238U, 234U, 232Th, 230Th, 226Ra and 210Pb were determined. After sampling and sample preparation, radiochemical separation procedures were applied. Then the samples were measured by alpha spectrometry system equipped with passivated implanted planar silicon detectors or by low background gas-flow proportional counter. Activity concentrations of natural radionuclides in samples were from 6.2 to 27.0 Bq/kg for 238U, from 7.9 to 28.1 Bq/kg for 234U, from 1.6 to 31.9 Bq/kg for 232Th, from 9.7 to 42.0 Bq/kg for 230Th, from 8.3 to 45.7 Bq/kg for 226Ra and from 3.0 to 113.4 for 210Pb. The obtained values are discussed in detail and compared with results of similar investigations carried out elsewhere.


Natural radionuclides Sediments Rocks Adriatic Sea 



Financial and technical support from IAEA (project IAEA RER7/003) is highly appreciated. Authors thank the crew of the research vessel Palagruža for hospitality and technical support during the research cruise. The Slovenian Research Agency (contract no. P2-0075) is acknowledged.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  1. 1.Jožef Stefan InstituteLjubljanaSlovenia
  2. 2.Institute for Medical Research and Occupational HealthZagrebCroatia

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