352 TRANS URANIC ELEMENTS IN THE ENVIRONMENT 



TABLE 7 (Continued) 



Wheat (plants) 



10- 



Cheatgrass (plant) 



10-= to 10" 



Tumbleweed (plant) 



Crops and vegetables 

 Fruit 

 Foliage 

 Subterranean 



10-= to 10-' 



10-= to 10-' 

 10"' to 10-^ 

 10-' to 10-' 



or nitrate form; 10 ^Ci/g 

 (soil); highest CR 

 occurred when plutonium 

 was added in nitrate 

 form to an alkaline, 

 calcareous soil. 

 Same as for corn; grain 

 used mainly for human 

 food plus ingredient for 

 animal feed; plants when 

 green can be used for forage. 



Grown in 1 kg of soil 

 spiked with 50 nCi/g of 

 ''''PuasPu(N03)^;high 

 CR values caused by 

 organic acids; native 

 species with no apparent 

 food value to man and 

 livestock animals. 



Same as for cheatgrass. 



Bush beans, beets, carrots, 

 lettuce, millet, potatoes, 

 radishes, soybeans, and 

 tomatoes grown in a flood- 

 plain in Oak Ridge 

 contaminated for 

 30 yr from weapon 

 development; soil had 

 25-100 pCi/g total 

 plutonium; nominal 

 surface contamination; 

 peeling the skins of 



Adriano, Corey, 

 and Dahlman, 

 this volume 



Price, 1972b; 

 1973 



Price, 1973 



Adriano, Corey, 

 and Dahlman, 

 this volume 



