THE RELATIONSHIP BETWEEN THE CONCENTRATIONS OF CALCIUM, STRONTIUM AND STRONTIUM-90 IN WILD BROWN TROUT, SALMO TRUTTA L. AND THE CONCENTRATIONS OF THE STABLE ELEMENTS IN SOME WATERS OF THE UNITED KINGDOM, AND THE IMPLICATIONS IN RADIOLOGICAL HEALTH STUDIES
The concentrations of Ca and Sr were measured in 20 surface fresh waters from the United Kingdom, and relations derived for the concentration of Sr and the ratio of atoms of Sr/1000 atoms of Ca, as a function of the Ca concentration of the water. Brown trout (Salmo trutta L.) and some other species of fresh- water fish were sampled from some of these waters and the Ca and Sr concentrations measured in bone, muscle tissue, and whole fish. The Ca concentration in bone and muscle tissue of brown trout was independent of the Ca concentration of the water, while the Sr concentration of the tissues was inversely related to the Sr concentration and hence, the Ca concentration of the water. In both bone and muscle tissue discrimination against Sr, relative to Ca, occurs. The Sr/Ca atom ratio in fish and plants reflects the Sr/Ca atom ratio of the water. The accumulation factors for Sr in brown trout ranged from 3.2 x 10/ sup 4/ in bone and 80.0 in muscle tissue in waters of low Ca concentration, to 280 in bone and 1.0 in muscle tissue in waters of high Ca concentration. The determination of the concentration of /sup 90/Sr from weapons fallout in brown trout tissues indicates that the degree of accumulation, and the relation with the Ca concentration of the water is comparable with that obtained for stable Sr. Predicted values of the concentration of /sup 90/Sr in brown trout muscle tissue, at true equilibrium, and reflecting the contribution from both water and diet, in waters containing Ca in the range 0.36 to 100 Mg Ca/l and /sup 90/Sr in the range 1.0 to 100.0 mu mu C /sup 90/Sr/l are presented. The radiological health implications are discussed. (auth)
- Research Organization:
- United Kingdom Atomic Energy Authority, Windscale Works, Cumberland, Eng.
- NSA Number:
- NSA-18-016243
- OSTI ID:
- 4066143
- Journal Information:
- Intern. J. Air Water Pollution, Vol. Vol: 8; Other Information: Orig. Receipt Date: 31-DEC-64
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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