Chapter 3 



Ejfects of Time and Mixing Characteristics 



41 



TABLE 1 Fission Product Spectrum in the Ocean At Steady State Disposal into Deep Sea. Calcu- 

 lated FOR Fission Rate of 1000 Tons U^Vyr (2.4 X lO"' mwh/yr of Nuclear Heat), Irradiation 

 Time of 1 Yr and Cooling Time of 100 Days. Average Life of a Water Molecule in the Deep 

 Sea Taken as 300 Years; Average Depth of the Mixed Layer Taken as 100 Meters. 



Total amount in ocean Activity (dps/liter) 



, A ^ ^ A ^ am 



Half- Fission Metric Activity a = aa am Microcuries 



Isotope life yield % tons megacuries ad/a™ Deep sea Mixed layer per liter 



5oCs"' 33 y 6.3 1750 1.4X10' 1.17 3.64 3.12 8.4X10"' 



seBa^'"" 2.6 m — — 1.3X10' — 3.35 2.87 7.7X10"' 



ssSr"" 28 y 5.0 780 1.1 X lO' 1.20 2.90 2.42 6.5X10"' 



sflY"" 64 h — 0.20 1.1 X 10' — 2.90 2.42 6.5 X 10"' 



ssCe'" 280 d 5.3 19 6.0X10* 8.32 1.62 0.19 5.2X10"" 



BsPr"* 17.5 m — — 6.0X10* — 1.62 0.19 5.2X10"" 



eiPm"' 2.5 y 2.6 48 4.6X10* 3.24 1.23 0.38 1.0X10"' 



62Sm''' 100 y 0.7 630 1.5X10* 1.06 0.40 0.38 1.0X10"' 



«,Zr" 65 d 6.4 0.58 1.2X10* 32.5 0.33 1.0X10"= 2.7X10"' 



uNb"' 36 d — 0.32 1.2X10* — 0.33 1.0 X 10"" 2.7X10"' 



39Y" 60 d 5.9 0.39 9.4 X 10' 35.1 0.25 7.2 X 10"' 1.9 X 10"' 



44Ru'°" 1 y 0.5 2.0 6.6 X 10' 6.6I 0.18 2.7 X 10"^ 7.2 X 10"' 



isRh^"" 35 s — — 6.6 X 10' — 0.18 2.7 X 10"' 7.2 X 10"' 



38Sr"« 54 d 4.6 0.22 6.0 X 10' 38.9 O.I6 4.1 X 10"' 1.1 X 10"' 



u^xx^'^ 40 d 3.7 7.2 X 10"' 2.3 X 10' 52.0 6.1 X 10"' 1.2 X 10"' 3.2 X lO"* 



ioRh^"' 55 m — — 2.3X10' — 6.1X10"' 1.2X10"' 3.2X10"" 



ssCe'*^ 32 d 5.7 6.3X10"' 1.8 X 10' 65.0 4.9X10"' 7.6X10"* 2.0X10^ 



esEu^" 2y 0.03 0.44 5.1X10' 3.8 1.4X10"' 3.6X10"' 9.7X10^ 



ooTe^"'" 33 d 0.3 3.4X10"' 1.0 X 10' 63.4 2.8X10"' 4.4X10"' 1.2X10"" 



saTe^" 70 m — — 1.0 X 10' — 2.8X10"' 4.4X10"' 1.2X10"" 



59Pr"' 13.7 d 5.4 — 40 151 1.1X10"' 7.2X10"" 2.0X10"" 



BeBa"" 12.8 d 6.1 — 30 161 8.0X10"* 5.0X10"" 1.3X10"" 



57Lai*" 1.7 d — — 30 — 8.0 X 10"* 5.0 X 10"" 1.3 X 10"" 



5oSn^ 130 d 1.2 X 10"' — 6.8 16.8 1.8 X 10"* 1.1 X 10"' 3.0 X 10"" 



Xd"'" 44 d 8 X 10"* — 0.64 47.4 1.7 X 10"' 3.6 X 10"' 9.8 X 10"" 



B3P' 8 d 2.8 — 0.35 256 9.5 X 10"" 3.7 X 10"^ 1.0 X 10"'' 



esEu^'" 15.4 d 0.01 — 0.15 134 4.0X10"" 3.0X10"' 8.0X10"" 



bbCs"" 13.7 d 0.01 — 7.5X10"' 151 2.0X10"" 1.3X10"' 3.6X10"" 



BoSn^' 10 d 0.02 — 1.7 X 10"' 206 4.7 X 10"' 2.3 X 10"" 6.2 X 10"** 



47Ag*" 7.6 d 0.018 — 1.4X10"' 268 3.9X10"' 1.4X10"" 3.9X10"*' 



Totals: 3230 7.7 X 10' 19.3 12.1 3.2 X 10"* 

 Natural potassium and rubidium in the sea: 



K*" 6.3 X 10" 4.6 X 10' 1 12 12 3.2 X 10"* 



Rb" 1.2 X 10** 8.4 X 10' 1 0.22 0.22 5.9 X 10"" 



All activity values are Beta activities only, except where isomeric transitions are indicated. 



Conversion: 1 disintegration per second ^ 2.7 X 10"' microcuries. 



1 curies: 3.7 X 10*" disintegrations per second. 



