RADIOACTIVITY IN PRECIPITATION
963
Table 3—-AVERAGE BETA ACTIVITY AND TOTAL RAINFALL
FOR EACH STATION
_
Average
beta activity,
Total rainfall,
Date
Station
pe/liter
in.
April 17
1
347.9
0.36
Average
“April 23 ™
2
1160.0
5
6
7
8
9
0.06
512.0
351.0
935.0
461.7
341.0
0.20
0.21
0.26
0.64
0.35
‘ac
May 9
Me
7
-
.. Average
em oe
1
2
ee aS
*
=
=
oe
600.0
4
5
6
7
8
9
10
nel
"
396.7
%
0.29
0.30
0.05
0.67
0.56
118.0
0.95
142.6
1.68
183.4
0.78
81.0
1,82
176.9
1.98
255.8
1.26
Average
May 10
0.36 ,
1,01
1
2
293.3
261.5
0.96
1.54
4
5
6
7
8
9
10
278.8
119.3
153.8
210.8
169.7
173.5
184.7
1.80
0.84
1.33
1,04
0.78
1.45
1.38
3
293.5
1.17
Average
1.23
the maximum rainfall rate, and then increased to a maximum in the
rainfall from the rear of the storm. In four of these five cases, the
maximums occurred in weak peripheral rainfall. The remaining three
profiles increased to a maximum of beta concentration associated with
the rainfall-rate maximum atthe stations.
The effects of light peripheral rainfall are shown in the smoothed
total-rainfall and average-beta-concentration patterns for April 23 and
May 9, Figs. 12 and 38, respectively. The patterns for May 10 show
that the values of total rainfall and average beta concentration were