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ESTIMATE OF Sr DEPOSITION FROM GUMMED FILM
statron #__141
LOCATION BOSTON, MASSACHUSETTS
Jen,
0,19
0.03
0.33%
0,22
Feb,
019
42
136
24
March
April
.03
.03
.100
1,13
«34%
.27%
53
92
May
.02
£98
.63
.62
June
07
43
30
A)
July
Aug.
Sept.
Oct.
.09
-.09
.40
46
.16*
.12%
.06*
.18*
17
ah
“AT
.20
.50
42
.60
i)
Nov.
£39
.07
24
22
OL
1,97
115
3.83 -
220.
3.72
22
5.27
Dec,
TOTAL
en,
2.22
“Best
0.60
Hest,
0.72
Feb,
-30
0.75
Maroh
.75
1,11
Pre~1954
2.69
April
1.87
12.75
1954
1.97
June
July
5A
)
.68
Be
1956
1957
3.72
5.27
7.07
May
79
él
1955
3.83
Aug.
£25
12
1958
Sept.
628
.05
1959 7.33
Oct,
132
205
Nov,
53
04
Dec,
ee?
TOTAL
Bf
4
HB
31.9
210
7.07
2»
Total
7.33
wt
bk
&B
B
oo
-2
-
kh
£
LE