241 The concentrations (pCi/g) of Am present and that which will result in the soil at Bikini and Eneu are from 24loy decay will be 0.81 (0.55 approximately one-half of the + 0.26) that of the existing 239,240, 239, 2 . *0pu concentrations. However, soil concentrations. more 241 am will result from the decay of 24lou, The parent-daughter rela- tionship for 241ey 24dam is shown in _ Fig. 4. that will result from an initial activity is 2.6% of the initial . 2 activity. Because the present 241 dose via inhalation, the eventual 241 . . Am soil concentrations can be con- sidered equal to the The maximum. 241s activity 2415 Pu For estimates of trations. 239,240, As a result, uo concen— the doses shown in Table 6 for 239,240, | can be doubled to account for the 24)Ann. 4loy activity in the soil is 10 times that of 239,240, 241 Am soil u, the final activity resulting from the decay of DRINKING WATER PATHWAY The analysis of cistern and ground 24toy will be 0.26 that of 239,240, water were published in a separate The currently observed report. bam soil con- centrations are 0.55 that of 239,240, Both radiological and chem- ical analyses were performed. A sum- Thus, the final total soil concentra- mary of the radiological quality of tion of 24da resulting from 24) An now the water is presented here. 1 Ligiitl ~_ J Liter . \ wo N 241 Am activity 0 40 80. } 241 Dy activity Sf \ \ j KO oH 241 Am activity a Len Relative activity J ft Jf -_ - T 241By activity i) T OTT rt I AIT T TT? atPee ee 402 For more Fig. 4. Relationship between parent Pu activity and daughter 241Am activity. 120 Time — yr 5009416 -20-