Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Statistical analysis of $sup 239-240$Pu and $sup 241$Am contamination of soil and vegetation on NAEG study sites

Technical Report ·
OSTI ID:4169243

Reported here are results of the statistical design and analysis work conducted during Calendar Year 1974 for the Nevada Applied Ecology Group (NAEG) at plutonium study sites on the Nevada Test Site (NTS) and the Tonopah Test Range (TTR). Estimates of $sup 239-240$Pu inventory in surface soil (0 to 5-cm depth) are given for each of the NAEG intensive study sites, together with activity maps based on FIDLER surveys showing the field areas to which these estimates apply. There is evidence of a preliminary nature to suggest that the plutonium present in surface soil may be covered by a thin (less than 2.5 cm) layer of soil whose alpha activity is considerably less than that directly below. Computer-drawn $sup 239-240$Pu concentration contours and three-dimensional surfaces in soil and vegetation are given for Area 13 and GMX as a first attempt at estimating the geographical distribution of $sup 239-240$Pu at these sites. (CH)

Research Organization:
Battelle Memorial Inst., Richland, WA; Energy Research and Development Administration, Las Vegas, Nev. (USA). Nevada Operations Office
NSA Number:
NSA-33-000622
OSTI ID:
4169243
Report Number(s):
NVO--153
Country of Publication:
United States
Language:
English