4
pCi/g (SOIL SAMPLE}
COUNTS/SEC. (IMP)
3
2
\
\
10
RELAXATION DEPTH = 1/a
‘\ \
\ \
~
<p
(@ 1S IN THE EXPONENT SHOWING THE RATE
OF DECREASE WITH DEPTH}
-
obs
9
ee
7
“
\
6
UNIFORM
~~
“TO ~
N
may,
“hs
~
ms
Ts
3
ee
‘meen
rn ~
SY
~|
pny a= 1
~~,
PS
“Boss
aeer
2
0
2
4
6
8
10
12
SOIL SAMPLE DEPTH (CM)
FIGURE B-8-10, IMP SENSITIVITY TO “4! am SOIL CONCENTRATIONS AS A FUNCTON OF SOIL
SAMPLE DEPTH.
B-8-17