K
ra
One
{
i
PUTT
oR
3
BACKGROUND ACTIVITY
I
rrr
104
0
LLptti ye
2
4
6 8
tt sept pe
et
10 12 14-16 18 20 22 24 26 28 30 32 34 36 38 40
SAMPLE NUMBER
' Fige C.17
Example of Relative Background Activity,
Station 251.09 (sampler exposed but did
nut operate)
132
ae
a
;.