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Appendix Table 1

Potassium-40 and Cesium-]37 in Plants from Christmas Island, August 1975

Radionuclide, pCi/g, dry®
Sample Type
Copra
Coconut meat

"

miTk

Location

40,

1375

Composite

5.6 + 0.6

0.04 + 0.02

London

6.1 + 1.2

0.07 + 0.04

4.1 + 0.1

"

"

meat

Northeast Point

"

meat

UW-3

"

meat

Paris

“milk

"milk

Portulaca leaves
"
"
Scaevola leaves

16

0.13 + 0.02

(green)

BW site

"
"

(dry)

Messerschmidia leaves
Grass

0.04 + 0.015

0.05 + 0.03

X-site

"

"
"

"

6.4 + 0,5

ns

0.10 + 0.04
ns

Airfield, wash-sump

(dried)

0.04 + 0.03b

16
0=6+ (0.7
7.34 1.5

(green)

"

3.7 +.0.55

U.K. Beach
Northeast Point

"

"

nse

0.02 + 0.015

5.7 + 1.2

"

0.05 + 0.015

3.3 + 0.76
ns

"

"milk

"

"

4.5 + 0,2b

"

"

"
UW-3

X-site

#+0.4

9.5 + 1.2

19

ns

5.7

+0.1

0.73 + 0.08

+ 2.1

0.14 + 0.05

9.4 + 1.8

0.30 + 0.06

4.1 + 1.0
2006+ (0.6

"

ns

Unidentified leaves

Airfield, wash-sump

170+ (41.7

Green algae

London

22

06+ (1.6

0.05 + 0.03
0.09 + 0.04
0.04 + 0.02

32

+ 0.4
ns

The error values are two-~sigma, propagated, counting errors for a single sample.

pCi/g, wet
ns = not significant; the net sample count is less than the two-sigma, propagated, counting
error.
.

6¢

c.

‘

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