SVIBOR - Project code: 1-07-149

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 1-07-149


THE BEHAVIOUR OF RADIONUCLIDES AND MICROELEMENTS IN ENVIRONMENTAL SAMPLES


Main researcher: LULIĆ, STJEPAN (26872)


Assistants
Type of research: basic
Duration from: 01/01/91. to 12/31/95.
Papers on project (total): 68
Papers on project quoted in Current Contents: 9
Institution name: Institut "Ruđer Bošković", Zagreb (98)
Department/Institute: Center for Marine Research Zagreb
Address: Bijenička cesta 54
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (1) 425-747
Fax: 385 (1) 425-747, 420-437
Summary: The purpose of proposed research is to reveal the distribution of certain microelements and radionuclides in natural systems, their spreading mechanisms and velocities, as well as binding processes including suspended matter, sediment, soil and biota. In order to accomplish the task, the following research would be done: - The determination of pollution critical pathways in underground water-bearing horizonts by radioactive tracer methods. - The determination of geological materials sorption capacity and microelement distribution coefficients. - The improvement of natural samples treatment methods and development of radioactivity measurement techniques in order to increase the sensitivity. The studies include methods for alfa, beta and gama measurements. The results would be used in assessment of possible radioactive contamination risk degree, as well as in creation of legal provisions in order to protect water resources, the public and the environment.

Keywords: natural waters, radioactivity, natural radioactivity, artificial radioactivity, environment, isotope, nuclear activation analysis, dose equivalent, dose exposure of members of the public, microelements, sorption, radioactive traces

Research goals: The purpose of this research was to determine the abundance of radionuclides and microelements present in natural systems, and the changes in system quality due to human activities. The following research has been done in order to gain the insight: - radionuclides and microelements content in natural system was determined in order to define their spreading mechanism, their binding on suspended matter, sediment, soil and biota, as well as their accumulation sites; - the research on sorption capacity of geological materials was done and distribution coefficients for certain radionuclides and microelements were determined; - treatment methods for natural samples were improved and the alfa, beta and gamma measurement techniques were further developed in order to increase the sensitivity; - radioactive tracers have been used to determine the critical pathways of pollution spreading in underground water-bearing layers. The results are published in journals of international standing, submitted on scientific and expert meetings in Croatia and abroad, as well as in M.Sc. and Ph.d. theses.

COOPERATION - PROJECTS


  1. Name of project: 5243/RB Radionculide migration mechanisms in geosphere
    Name of institution: International Atomic Energy Agency
    City: Beč, Austrija

COOPERATION - INSTITUTIONS


  1. Name of institution: Institut za medicinska istraživanja
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  2. Name of institution: Poljoprivredni fakultet Sveučilišta u zagrebu
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  3. Name of institution: Šumarski fakultet Sveučilišta u Zagrebu
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  4. Name of institution: Prirodoslovno-matematički fakultet, Sveučilište u Zagrebu (Geološki odjel)
    Type of institution: University/Faculty
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  5. Name of institution: Veterinarski fakultet Sveučilišta u Zagrebu
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  6. Name of institution: Središnji institut za tumore
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  7. Name of institution: Fakultet kemijskog inžinjerstva i tehnologije Sveučilišta u Zagrebu
    Type of institution: Economical/Production
    City: 10000 - Zagreb, Croatia

  8. Name of institution: Institut za geološka istraživanja
    Type of institution: University/Faculty
    City: 10000 - Zagreb, Croatia

  9. Name of institution: Inštitut "Jožef Štefan", Univerza v Ljubljani
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: Ljubljana, Slovenija

  10. Name of institution: Zavod za varstvo pri delu
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: Ljubljana, Slovenija

  11. Name of institution: Klinički bolnički centar, Odjel za nuklearnu medicinu
    Type of institution: State institute
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia
Other information about the project.
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