Accumulation of radionuclides in bed sediments of the Columbia River between Hanford reactors and McNary Dam
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Abstract
Amounts of radionuclides from the Hanford reactors contained in bed sediments of the Columbia River were estimated by two methods: (1) from data on radionuclide concentration for the bed sediments between the reactors and McNary Dam, and (2) from data on radionuclide discharge for river stations at Pasco, Washington, and Umatilla, Oregon. Umatilla is 3.2 kilometers below McNary Dam. Accumulations of radionuclides in the Pasco to Umatilla reach estimated by the two methods agree within about 8%. In October 1965 approximately 16,000 curies of gamma emitting radionuclides were resident in bed sediments of the river between the Hanford reactors and McNary Dam. Concentrations and accumulations of chromium-51, zinc-65, cobalt-60, manganese-54, and scandium-46 generally are much higher near McNary Dam than they are in the vicinity of the reactors. These changes are caused by an increase downstream from the reactors in the proportion of the bed sediment that is fine grained and the proportions of the transported zinc, cobalt, manganese, and scandium radionuclides associated with sediment particles.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Accumulation of radionuclides in bed sediments of the Columbia River between Hanford reactors and McNary Dam |
| Series title | Water Resources Research |
| DOI | 10.1029/WR006i001p00130 |
| Volume | 6 |
| Issue | 1 |
| Year Published | 1970 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Washington Water Science Center |
| Description | 8 p. |
| First page | 130 |
| Last page | 137 |
| Country | United States |
| State | Oregon, Washington |
| City | Pasco, Umatilla |
| Other Geospatial | Columbia River, McNary Dam |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |