TABLE IV-5
_ ESTIMATED UNWEATHERED ACTIVITY ON SURFACE AND EXPOSURE RATE
AT ONE METER,RONGELAP ISLAND
H+0.5 Day
Nuclide
Nuc lide
$-35
Ca-45
Ge-75
Ge-77
As-77
As-78
8-35
Ca-45
zr-95
zr-95
Zr-95
zr-95
Se~-81
Zr-95
Se-77m
Se-81m
L£?
Reference
Activity
Per Unit Area,
H+0.5 Day
Exposure
Ci Km~2
Rate, R h7!
5.0x109
1.8x100
4.9x109
9.0x109
1.5x10!
5.7x101
Zr-95
4.7x1072
Zr-95
1.3x1071
1.9x1071
:
H+26 Day
Activity
Per Unit Area,
H+26 Day
Exposure
Ci Km72
Rate, R h7!
2.5x10712
2.3x1076
— 1.9x1074
1.9x1076
1.2x1073
4.0x109
1.7x101!
-
2.3x107!12
-
2.6x1076
-
6.71078
2.6x1078
-
-
-
-
-
Br-82
Br-83
Br-84
Kr-83m
Kr-85m
Kr-87
Kr-88
Rb-86
Rb-88
Rb-89
Sr-89
Sr-90
Sr-91
Sr-92
Zr-95
Zr-95
Zr-95
Zr-95
Zr-95
Zr-95
2r-95
Zr-95
Y-91
Sr-89
Sr-89
Sr-90
Y-91
Y-91
2.8x1072
1.8x103
4.6x1072
5.0x104
7.9x103
4.1x102
8.9x103
5.7x1073
1.7x104
3.9x1079
1.5x102
1.0x109
5.7x104
2.0x104
1.3x1076
2.5x1074
1.3x1076
3.0x1072
2.7x1072
5.3x1073
2.7x1071
9.2x1079
1.8x107!
1.4x10713
3.8x107/7
7.1x1071
4.6x107!
~
1.0x102
1.0x10°
~
2.41077
-
Y-90
Y-91
Y-91m
Y-92
Y~93
zr-95
Y-90
Y-91
Y-91
Y-91
Y-91
Zr-95
1.4x1071
6.6x102
3.4104
8.4x104
7.0x104
6.8x102
3.7x10711
3.71075
3.4x107!
3.8x10
1.1x107!
9.6x1073
1.0x109
6.6x102
5.2102
2.5x10710
3.7x1075
7.2x1073
Y-89m
Sr-89
1.4x1073
2.4x1078
-
-