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T ABLE II. DETECTION CAPABILITIES ASSOCIATED WITH A N A L Y T IC A L METHODS OF
ENVIRONM ENTAL RADIOACTIVITY SURVEILLANCE
4^
M edia
and isotope
Analytical
method
from Table I
Sample size
Minimum
detectable
levelsa
Annual dose
associated
with MDL
(m rem /a)k
Assumption for dose m odel
C ritical
Annual intake0
organ
Air particulates:
Gross beta E 300 m3 3 x 10"® p C i/m 3 Bone 7300 m3
89Sr F 1200 m 3 5 x 10*3 p C i/m 3 0.0 2 5 Bone 7300 m 3
90Sr F 1200 m3 1 x 10-3 p C i/m 3 0 .0 5 Bone 7300 m 3
134Cs A 1200 m 3 1 x 10^ p C i/m 3 0.005 T otal body 7300 m 3
137Cs A 1200 m 3 1 x 10-2 p C i/m 3 0.0025 T otal body 7300 m3
140Ba-La A 1200 m 3 1 x 10"2 p C i/m 3 0 .0038 GI (LLI) 7300 m 3
Air gases:
131 j
A 300 m 3 4 x 10* p C i/m 3 1.0 Thyroid
1710 m 3d
S hort'lived gases B Not applicable 20 m rem /a e 20 T otal body Not applicable
36Kr C 1 m 3 1 p C i/m 3 0.0 0 2 Skin Not applicable
3H (HTO) D 10-15 m l o f condensate 5 x 10"3 p C i/m 3 f 0.000013 Body tissue 7300 m 3
Water:
” • “ C o A 100 ml 20 p C i/litre 0 .3 2 h GI (LLI) 440 litres
“ C o B 3 .5 litres 10 p C i/litre 0.082 GI (LLI) 440 litres
“ C o B 3 .5 litres 10 p C i/litre 0.1 6 GI (LLI) 440 litres
140Ba-La B 3. 5 litres 10 p C i/litre 0.41 GI (LLI) 440 litres
H
1 litre
1.0 pC i/litre
0.041
I
1 litre
1.0 p C i/litre
0.041
3H J 4 .5 ml 200 p C i/litre 0.0 1 8 Body tissue 440 litres
14C
8°Sr
50Sr
K 10-15 ml 200 p C i/litre 0.018
L 10-50 m l 400 p C i/litre 0.0 3 6
M 200 ml 30 p C i/litre 0.031 Fat 440 litres
S 500 ml 0.6 p C i/litre 0.0006
N 1 litre 5 pC i/litre 1 .4 Bone 440 litres
O 1 litre 5 p C i/litre 1 .4
P 1 litre 5 p C i/litre 1 .4
R 1 litre 5 p C i/litre 1 .4
N 1 litre 1.0 p C i/litre 2 .7 Bone 440 litres
O 1 litre 1.0 p C i/litre 2 .7
P 1 litre 1.0 p C i/litre 2 .7
Q 1 litre 1.0 pC i/litre 2 .7
APPENDIX I