Appendix Table 13

Predominant Radionuclides in Plants Collected at Rongelap and Utirik Atolls, November-December 1974

Radionuclide concentration in pCi/g, dry®
Island
Rongelap Atoll

Rongelap
wo
"

"

Lukuen
"

"
"
"

Lomuilal

"

"
"

Site

Pit #3
"

"

"

Site #5
"

Site #6
"
"

Site #6

Site #7
"
"

Sample Type

Wet/Dr

40

Ratin

137

K

90

Cs

6.49

3.3 #1.4

13

41

No

4]

na?

Breadfruit, leaves

4.72

7.63

7.6 +1.9

6.1] +2.3

27

+0..4

23.

«42.8

na

Scaevola, leaves
Pandanus, leaves

8.08
3.88

15
+2.7
6.4 +2.4

14
50

+0.3
0.6

26
45

+30
+6.2

1.64
2.33

3.7 41.1
ns

13.
«-+0.3
8.3 +0.4

<0.1
9.7 +0.8

3. 86

3.4 +1.1

36

+014

35

2.17
1.59

1.6 +0.7
3.9 41.5

18
43.

=+0.1
+0.5

10
=+0.5
0.19 +0.06

Coconut, fronds

Scaevola, leaves

Coconut, milk
"
"

meat
fronds

Pandanus, leaves

Coconut, milk
"
"

fronds
meat

1.82

37.5

37.5

ns

0. 3340. 23°

ns

4.2 +0.2

21

+0.7

0.5840.03°

1.5 +0.05°

2.1) +0.3

Pit #1

"

"

"

"

w)
ak

na
na
na

4.1 41.5

<0.005¢
0.005
0.062

3.2

na

0.11¢

0.010 +0.001
<0.0027

Village

Pandanus, edible
,
fruit
"
inedible
fruit
tl

Banana,

leaves

fruit

6.60
3.52
4.30

4.38

17

=«+1.8

67

+0.6

1.8 +1.4

21

+0.3

<0.4

+0.3

<] .0

ns

9.1 +1.5

7.3

0.5 +0.1

<0.0043

0. 4

<0.0025
<0.0027

<0.0029

The error values for all radionuclides listed except 90sr and Pu are two-sigma, propagated, counting errors
for a single sample. The error value for 90Sr and Pu is the two-sigma counting error for a single sample
plus an analytical error.
ns = not significant; the net sample count is less than the two-siqma, propagated counting error.

na = not analyzed

vt

b.

na

3.0 +0.3

3.6¢

Pu

|

Utirik

a.

°

Pandanus, leaves

Utirik Atoll

"

239,240

Sr

Select target paragraph3