Radionuclide partitioning across great lakes natural interfaces |
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| Authors: | R F Platford S R Joshi |
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| Institution: | (1) Lakes Research Branch, National Water Research Institute Canada Center for Inland Waters, L7R 4A6 Burlington, Ontario, Canada |
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| Abstract: | Several water and surface microlayer samples from Lake St. Clair, the Niagara River, and the North Shore of Lake Ontario collected during 1983–1986 have been assayed for a variety of radionuclides. In addition, the foam accumulating in the pool just below Niagara Falls was also analyzed and found to be the most efficient aqueous phase collector of137Cs,210Pb, and226Ra.The order of radioisotope specific activities from highest to lowest is: Lake Ontario sediment, Niagara River suspended solids, Niagara River foam, surface microlayer water, and subsurface water. Radiological dose rates to the sediments from137Cs,226Ra, and228Th total about 5 mGy/y. |
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