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Distribution throughout Utah of /sup 137/Cs and /sup 239 +240/Pu from Nevada Test Site detonations

Technical Report ·
DOI:https://doi.org/10.2172/6854358· OSTI ID:6854358
From the analyses of the /sup 137/Cs and /sup 239 +240/Pu content and from the plutonium mass isotopic composition of soil samples recovered in Utah, the fraction of these radionuclides that were deposited in Utah by global and by Nevada Test Site (NTS) fallout was determined. Deposition of NTS /sup 137/Cs and /sup 239 +240/Pu followed similar patterns with elevated values existing in the southwestern corner of Utah around St. George, and then decreasing rapidly with distance along a northeasterly direction from NTS. Then midway along this diagonal through Utah, NTS fallout of these radionuclides increased again and remained elevated throughout the remainder of the state. In the populated Provo and Salt Lake City valleys, the NTS /sup 137/Cs deposits were about 1/2 that of St. George and the NTS /sup 239 +240/Pu deposits were even greater than at St. George.
Research Organization:
Department of Energy, New York (USA). Environmental Measurements Lab.
OSTI ID:
6854358
Report Number(s):
DOE/EML-400; ON: DE82007661
Country of Publication:
United States
Language:
English

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