Table 4.
(Cont.)
Activity
strata
n
Mean + S.E.
(ug/gdry)
Minimum
concentration
Maximum
concentration
NTS Area 13 (1957) Project 57
+ .093
.076
.21
66
.16
-13
+ .088
+ .030
~15
.10
-17
-16
-11
.33
-15
-14
+ .059
+ .13
.023
. 0092
. 36
. 26
. 86
3
-19
+ .035
-11
.22
. 37
-13
-26
-25
-30
+
+
+
+
.038
.066
.13
.041
019
.077
~12
19
.27
55
- 38
39
73
-63
75
-30
.077
.13
-15
-32
+
+
+
+
.024
.018
.049
.037
. 020
. 062
.058
21
25
-17
22
46
.98
~32
-56
-30
.19
-15
.35
-40
+
+
+
+
.020
.011
.079
.12
-11
.13
.070
. 088
.27
-17
73
88
.27
13
64
.70
1
2
3
2
1
0
-14
.16
5
6
Total
2
2
8
4
1
-12
TTR Double Track (1963)
1
2
3
4
Total
5
2
0
4
12
TTR Clean Slate 1 (1963)
1
2
3
4
Total
6
6
2
5
19
TTR Clean Slate 2 (1963)
1
2
3
4
Total
10
5
3
7
25
TTR Clean Slate 3 (1963)
1
2.
3
4
Total
a
7
3
8
_6
24
Total uranium measured by fluorimetry method for which the analysis error is
about = 20 percent.
c = s/x = coefficient of variation.
“Data taken from Gilbert and Eberhardt,
45
1976.