- STUDY OF THE ENVIRONMENTAL BEHAVIOUR OF RADIONUCLIDES.
- COLLECTION OF DATA NECESSARY FOR MODELING THE RADIONUCLIDES TRANSFER.
Two models were developed to simulate the transfer of radioactive iodine and caesium through the grass cow milk pathway. These proved useful for radiological assessments of accidental releases to the atmosphere. The predictive accuracy of the models appears to be within a factor of 2 when compared with Chernobyl data from Denmark. However, the transfer of radio iodine from the atmosphere to the ground is more uncertain due to the chemical speciation of this element.

Experimental studies in the marine environment have included measurement of the turnover of radionuclides in bioindicators, as well as field studies in the North Atlantic region and the Baltic sea, and also Thule studies.

Dynamic models have been developed of the human food chain to assist in the determination of less well known, but long lived, radionuclides. The 2 models developed to simulate the transfer of radioactive iodine and caesium through the grass cow milk pathway are useful for radiological assessments of accidental releases to the atmosphere.
1. TERRESTRIAL ENVIRONMENT :
- DYNAMIC MODELS OF THE HUMAN FOODCHAIN.
- DETERMINATION OF LESS WELLKNOWN LONG-LIVED RADIONUCLIDES.

2. MARINE ENVIRONMENT :
- EXPERIMENTAL STUDIES (TURNOVER OF RADIONUCLIDES IN BIOINDICATORS).
- FIELD STUDIES (NORTH ATLANTIC REGION - BALTIC SEA)
- THULE STUDIES.