TABLE 1.3
ESTIMATED RELATIVE DOSE AND DISTANCE OF DRIFT FOR FFP’S
Time of
Assumed
of Cloud
of Fallout
min
Duration
mio
During
Est. Percent
of FFP’s
Moving Stated
Exposure
Distance
or Less
ft
D, as Percent of Dy + Dy
Vp = 0.3
Vp = 3.0
.
,
cm.’sec
cm/sec
Vo = 30
cm/sec
pet
pet
pet
pet
1
2
8
16
240
460
37
100
99.9
99.3
98.5
93.0
87.0
3
4
24
32
720
960
-
99.8
-
97.8
-
96.4
-
61.5
-
72.6
-
99.2
87.5
93.0
86.9
$7.1
39.8
5
6
8
40
48
64
1,200
1,440
1,920
58
79
10
20
a0
160
3,000
6,000
-
99.6
~
-
42
fys
Arrival
FFP Movement