454 TRANS URANIC ELEMENTS IN THE ENVIRONMENT 



TABLE 8 Statistical Analyses (t Statistic for Two 



Means) of the Null Hypothesis of Equal Radionuclide 



Concentrations in Upper and Lower 6-cm Segments 



oi Cladonia-Cetraria Lichen Carpet Samples 



(Ho : Cu = Ci) During 1969 and 1970 



TABLE 9 Concentration Ratios of 



Greenland and Alaska Lichen Samples 



Concentration ratio, 

 (pCi/g lichen)/(pCi/g soil) 



Location 



Pu 



2 3 9,240 



Pu 



'Cs 



Alaska 140 180 36 



Greenland 3 140 52 



TABLE 10 Correlation Coefficients of "^Pu/"^Pu and ^^^Pu/' ^ ''Cs Concentration 

 Ratios in Soil and Lichen Samples from Alaska and Greenland 



also an indication that sample sizes were often too small to validate the hypothesis that 

 p = 0, i.e., that the sampled populations were normally distributed about the regression of 

 YonX. 



Radionuclides in Caribou Tissues 



Flesh and bone samples of 69 caribou taken by the Anaktuvuk Pass Eskimos during the 

 period 1964 to 1976 contained highly variable concentrations of^'^^Puand 239,240p^^ 



