RMI Nuclear Justice Documents

Table 2,

Dist#ibution of Plutonium in Size Fractions and Contribution of Sizes to Total Soil Plutonium

Size Range

Sample
No.

(um)

2000-840

140-250

250-125

125-53

52-20

20-5

5-2

< 2

6A

A
B
Cc

6
0
0.1

6
1
0.3

5
1
0.3

208
44
12.4

2358
233
65.9

695
63
17.8

239
9
2.6

92
2
0.6

6B

A
B
C

10
1
0.5

13
2
1.9

6
1
0.8

7
1
0.9

1143
102
78.8

149
16
12.6

52
3
2.6

64
3
2.0

6C

A
B
C

4
0
0.2

6
2
0.9

4
1
0.4

155
22
11.6

2337
136
72.4

288
19
9.9

257
8
4.1

34
1
0.5

OT

Activity*

*Activity:

A = dpm/g in size fraction.
B = Contribution in dpm/g of soil, activity rounded off to nearest whole number.
C = Percentage contribution of activity in size fraction to soil.