Safety_Series_041_1975 - gnssn - International Atomic Energy ...

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This publication is no longer valid Please see http://www.ns-iaea.org/standards/ 50 APPENDIX II TABLE IV. RADIOACTIVITY OF SEAFOOD IN THE VICINITY OF TAPS SITE DURING 1971 D a te o f c o lle c t io n D e scrip tio n 131j 89+9°sr 137+134q s (p C i/k g ) 60~ C o 1 2 3 4 5 6 5 . 4 .7 1 R ib b on fish (T rich iu ru s sa vla) 9 3 .0 ± 1 4 .7 BDL 3 6 .5 ± 5 . 8 BDL 1 7 .4 .7 1 Prawns 2 0 0 9 .0 ± 1 7 6 .4 2 2 .7 ± 4 . 8 1 5 9 .0 ± 3 1 .0 8 . 6 ± 3 . 5 1 7 .4 .7 1 C ro a k e r (O to lith e s argen reu s) 3 3 1 .2 ± 3 7 .2 BDL 1 1 7 .0 ± 2 8 .0 BDL 1 7 .4 .7 1 C ra bs 5 2 1 .9 ± 7 9 .5 1 2 .6 ± 2 . 7 1 7 4 .0 ± 3 3 .0 BDL (S e y lla Serrata) 1 2 .5 .7 1 Prawns 3 8 0 . 5 ± 2 8 .5 1 1 .4 ± 2 . 6 1 4 0 .1 ± 1 8 .9 5 . 7 ± 2 . 2 6 . 7 . 7 1 C ro a k e r 4 1 0 . 0 ± 3 8 .0 3 8 .3 ± 4 . 3 1 5 3 0 .0 ± 1 0 .0 BDL 6 . 7 . 7 1 Prawns 2 7 0 .0 ± 2 5 .0 8 5 .5 ± 6 . 7 2 1 8 0 .0 ± 1 1 0 .0 1 1 .8 ± 3 . 7 7 . 7 . 7 1 C ra bs 60 3 1 0 .0 ± 3 4 .0 5 4 .5 ± 5 .7 6 9 0 8 .0 ± 3 1 0 .0 3 .2 6 ± 1 . 8 1 1 .7 .7 1 Prawns 1 0 2 5 .0 ± 3 5 .5 3 3 .4 ± 2 . 7 1 2 9 8 .2 ± 7 2 .6 BDL 1 1 .7 .7 1 C la m s 1 6 7 0 .0 ± 1 2 0 .0 9 . 5 ± 2 . 5 8 3 0 .0 ± 3 . 4 BDL (M eretrix ) 1 1 .7 .7 1 O ysters 1 5 0 .0 ± 1 1 .4 1 8 .4 ± 4 . 6 1 1 6 .0 ± 5 . 6 1 2 .4 ± 3 . 2 3 0 .7 .7 1 Prawns 2 9 6 .0 ± 1 5 .4 1 5 .6 ± 3 . 8 3 8 5 .5 ± 1 4 .6 BDL 8 . 9 . 7 1 B om b a y d u c k 2 5 .5 0 ± 2 . 2 8 . 7 ± 2 . 6 9 5 .5 ± 4 . 5 6 . 8 ± 2 . 2 (H a rp odon n eh ereu s) 8 . 9 . 7 1 F u ll b e a k g a r fish (H em ira m p h u s 8 4 .6 i 1 7 .2 BDL 1 0 2 .0 ± 1 8 .6 1 3 .5 ± 1 . 4 g e o rg i) 1 4 .1 0 .7 1 B om b a y d u ck 2 2 5 . 0 ± 1 5 .4 1 1 .6 ± 5 . 4 3 9 5 .0 ± 2 2 .5 BDL 2 8 .1 2 .7 1 M a c k e r e l (R a stelleg er 1 3 8 .0 ± 1 2 .4 8 . 5 ± 2 . 5 1 2 3 .0 ±8.8 1 5 .8 ± 5 . 2 k anagu rta) A v e r a g e : 5 0 8 .6 4 ± 2 4 2 .2 2 0 .6 7 ± 3 . 8 5 1 2 .1 t 1 2 9 .5 4 . 86 ± 2 . 9 BDL = B elow d e t e c t io n lim it for 1 k g s a m p le .
This publication is no longer valid Please see http://www.ns-iaea.org/standards/ APPENDIX II 51 TABLE V. CRITICAL PATHWAY APPROACH TO DISPOSAL ASSESSMENT FOR AQUEOUS RADIOACTIVE WASTE Estim ated a c tiv ity le v e l in w ater a t equ ilib riu m from one cu rie per day & C o n cen tratio n factors for c r itic a l m a te ria ls A ctiv ity le v e ls in c r itic a l m a te ria ls & L o cal survey data ♦ D a ily in ta k e /d a ily exposure & ICRP m axim u m perm issible d a ily in tak e/exp o su re I M axim um p erm issible d aily discharge rate These concentrations are used, together with suitable concentration factors, to derive concentrations for the material or materials likely to provide the greatest degree of human radiation exposure; then, from the known utilization of these m aterials, the perm issible concentrations of radioactivity are ascertained and, in consequence, the perm issible water concentrations and discharge rates. The vitally important aspect of such an exercise is the habits survey, because it is necessary at an early stage to establish the working, eating and recreational habits of the loca l population, and in certain instances those of populations at some distance from the contaminated area, in order to make quantitative estimates of food intake, or of hours exposed to external radiation. In this way rates of introduction compatible with acceptable dose limits for m em bers of the public may be established, or estimates of the dose resulting from uncontrolled contamination, e. g. weapon-test fall-out, may be made. The early results of monitoring in relation to potentially exposed groups allow the classification of situations into three principal types: (a) those where contamination of critical materials leads to a significant fraction of the ICRP dose lim it for m em bers of the public;
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