Clams as Indicators of Strontium-90

Nelson, D.J.

doi:10.1126/science.137.3523.38

Cited by 32 publications

(11 citation statements)

References 2 publications

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“…Not only does stable strontium compete with radiostrontium (Sr90 ) for exchange sites, but both forms compete with the much more abundant calcium. Nelson (1962) measured the ratio of radiostrontium to stable strontium in clamshells in the Clinch River and the Tennessee River and reported that the ratio decreased with distance downstream from the mouth of Whiteoak Creek in the same manner as that predicted on the basis of flow dilution. This relationship is apparently the result of the proportional substitution of radiostronium and stable strontium for some of the calcium ions in the calcium carbonate of the clamshell as the shell is formed.…”

Section: Chemical Characteristicsmentioning

confidence: 73%

Distribution of radionuclides in bottom sediment of the Clinch River, eastern Tennessee

Pickering¹

1969

Professional Paper

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Relationship of vertical distribution to annual Acknowledgments____________________________ 3 releases... __________________________________ Hll Previous work__________________________________ 4 Physicochemical composition of selected core samples-. 13 Methods and equipment_-__-_______-_______-_____ 5 Physical characteristics.- .-__________________ 13 Core sampling________________________________ 5 Mineralogical characteristics-________________ 16 Core counting__________________________________ 5 Chemical characteristics_________________________ 19 Physicochemical analysis of sediment______________ 6 Correlations of physicochemical characteristics and Core sampling results_______________________________ 7 radionuclide content___________-______________ 19 Variation of radionuclide content with depth in cores__ 7 Discussion_____________________________________ 20 Gross gamma core scanning______________________ 7 Conclusions_____________-___________________-____-23 Gamma-ray spectrum core scanning_____________

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Section: Chemical Characteristicsmentioning

confidence: 73%

Distribution of radionuclides in bottom sediment of the Clinch River, eastern Tennessee

Pickering¹

1969

Professional Paper

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“…It is well known that aquatic organisms can incorporate and concentrate radionuclides, e.g., the accumulation of strontium-90 in the shells of mollusks (Boroughs, Chipman and Rice 1957;Nelson 1962). Brother L. George, FSC.…”

Section: Results and Drscussronmentioning

confidence: 99%

Measurement of Background Radiation in Lakes

Likens¹

1965

Ecology

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Measurements of background radiation were made in five lakes–two Wisconsin, two New Hampshire, and one antarctic. These lakes were characterized by a small amount of ionizing radiation in mid—water and increasing quantities near the air and sediment boundaries. Moreover, the radioactivity of the sediments in the Wisconsin and New Hampshire lakes usually increased toward the shore line. Count—rate values for the sediments near the shore line were up to ten times higher than the values recorded near the bottom in deep water. A similar pattern of radioactivity distribution in the sediments was not apparent in Lake Vanda, a perennially ice—covered antarctic lake. Various hypotheses were suggested to explain the origin of the anomalous distribution of ionizing radiation in these lakes and its possible role as an environmental factor.

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“…released from ORNL tend to remain in solution, are rapidly diluted in the Clinch River and Watts Bar Reservoir, and, for the most part, flush through the system (Nelson 1962, Cowser et al 1966 Resuspension and redeposition also result in the transport of fine sediment particles downstream and f_om shallower to deeper portions of basins (e.g., Davis 1968Davis , 1973Kimmel 1978) Parker et al 1966, Pickering et al 1966, Carrigan 1969, Oakes et ai. 1982b).…”

Section: Introductionmentioning

confidence: 99%

Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

Loar¹,

Adams²,

Allison³

et al. 1991

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This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibilityfor the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not neoessadly constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Governmerltor any agency thereof.

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Clams as Indicators of Strontium-90

Cited by 32 publications

References 2 publications

Distribution of radionuclides in bottom sediment of the Clinch River, eastern Tennessee

Distribution of radionuclides in bottom sediment of the Clinch River, eastern Tennessee

Measurement of Background Radiation in Lakes

Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

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