Seasonal Cycling of Cesium-137 in a Reservoir

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Science  16 Feb 1979:
Vol. 203, Issue 4381, pp. 649-651
DOI: 10.1126/science.203.4381.649


Studies of a reservoir in the southeastern United States show that cesium-137, introduced into the system from a leak in a nuclear fuel element, cycles between the water and sediment on a seasonal basis. The cycling, which coincides with the annual periods of thermal stratification in this monomictic lake, has been occurring for over 10 years.