TABLE 3-5. ISLAND AVERAGE EXPOSURE RATE VALUES FOR !87cs AND §%Co OBTAINED
FROM THE FINAL POST CLEANUP IMP DATA AND FROMTHE 1972 AERIAL
SURVEY.
Average Exposure Rate (;.R/h at 1 m)
137 C5
Aerial*
Island
(Nov 72)
Alice
14
12
Janet+
Kate
Lucy
Mary
Naney
Olive
Pear]+
25
1]
6
3.9
6
6.5
12
Ursula
Vera
3
2.8
Ruby
Sally+
Tilda
2
3.5
4
Wilma
Y¥ vonnet+
(Nov 78)
37
61
20
6.8
Irenet
Aerial**
42
Belie
Clara
Daisy
1
966
60Co
IMP
53
17
5.9
Aerial*
{Nov 72)
(Nov 78)
IMP
29.3
36
16
17.4
3.3
63
29
13.0
35.8
18.3
4.4
50
19
14.4
22
9.6
5.2
4.8
2.2
Del
10
10,2
3.0)
6.1
3.1
6.8
at
4.0
13
7
7
4
2
4.5
45
2.6
2.4
0.9
1.7
1.8
2
1.7
3.0
3.5
Aerial**
0.6
2.0
2.3
0.9
0.8
4.9
1.9
23
8.6
6.5
a9
3.2
dee
1.8
2.3
2.0
20
12
3
2
2.4
1.4
0.9
0.8
0.9
}
0.5
224
10
15.2
9.2
7.0
3.3
1.8
2.6
1.4
2.2
1.9
7.0
3.8
1.5
0.7
0.3
0.5
0.3
4.]
* From NVO-140, Table 9, p. 80
** Nov. 72 data corrected for radioactive decay to Nov. 78
+ Islands where soil was removed during the cleanup
TABLE 3-6. AVERAGE |37cs ACTIVITY IN THE TOP 15 em OBTAINED FROM THE IMP DATA
(WITH 1/a = 12.5 em) AND THE 1979 FISSION PRODUCT DATA BASE RESULTS.
bland
Final IMP Results
(pCi/g)
Fission Product Data Base Results
(pCi/g)
Alice
Belle
Clara
Daisy
Irenet
Janet
Kate
Lucy
44
54
ra
6.6
5.0
15
7.5
9.2
40
6]
22
6.8
6
16
7.8
12
Nancy
Olive
Pearl
10
7.7
6.0
11
7.9
7.2
Sally
Tilda
Ursula
Vera
Wilma
3.0
3.5
1.2
2.6
1.2
3.5
3.2
1.2
3.0
1.3
Mary
~ Ruby
4.7
6
0.9
2.0
*Additional cleanup was performed on this island after the fission product data base
samples were obtained.
103