282 TRANSURANIC ELEMENTS IN THE ENVIRONMENT 



TABLE 1 1 Summary of Plutonium Concentrations on Total Airborne Solids 



* Respirable as used in this chapter refers to those particles found on all filter and impactor stages 

 as contrasted to nonrespirable particles collected by gravity in rotating cowls. 

 tNR, no radiochemical results. 



TABLE 12 Summary of Plutonium Total Transport 

 Fluxes on Nonrespirable* Particles 



*Nonrespirable as used in this chapter refers to those 

 particles collected within the rotating cowl shown in Fig. 3. 

 tNR, no radiochemical results. 



Airborne plutonium transport fluxes on nonrespirable particles are summarized in 

 Table 12. These data and the decrease of flux with distance shown in Figs. 8 and 9 

 constitute the present knowledge on this subject. There is surprisingly reasonable 

 agreement within several orders of magnitude for nonrespirable airborne plutonium 

 fluxes. However, the agreement may be caused, in part, by relatively more soil transport, 

 with a lower plutonium-on-soil concentration being comparable to a lower soil transport 

 and concurrent higher plutonium-on-soil concentration. Nevertheless, these ranges of 

 horizontal plutonium fluxes on nonrespirable particles could be used in modeling efforts 

 and hazards analysis until a greater data base is experimentally obtained. 



