Chromate bioavailability to the mollusc Venus Verrucosa |
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Authors: | C Papadopoulou M Stamouli |
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Institution: | 1. "Demokritos”;2. N.R.C., Radioanalytical Laboratory , 153 10 Ag. Paraskevi Attikis, Athens , Greece |
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Abstract: | In this work the biokinetics of 51CrO2 4 ‐ in the edible mollusc Venus Verrucosa were studied. Laboratory uptake experiments, using two groups of Venus verrucosa, were performed, in aquaria containing sea water with Na2 51CrO2 4 ‐, in concentrations of 40 and 80 μCi/201 respectively. The distribution pattern of 51CrO2 4 ‐ in the body of V. verrucosa was studied. The biological half time of 51CrO2 4 ‐ was also found (Tb1/2 = 41.8d). The concentration factors for 51CrO2 4 ‐ were found to be low (k~2) for both concentrations used. From the accumulated whole body radioactivity 59.0% was found in the shell. In the internal tissues viscera and gills display the greater ability to accumulate 51Cr in its hexavalent state. |
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