-1[3- HW-80991 cro! 17% Np239 cu®4 6% 27% RE& Y 4.1% Mn? 23% 76 4.5% 15% Hanford Ferry Total Activity Represented 5.2x 107° pe/ee P™™ 0. 6% i zn65 As’ 6 1% 6s 5. 4% Zn®° 2.3% = 1. 2% § Others 0.7% cuS4 ———7.165 1, 6% 17% Vancouver Np 239 12% Na24 P32 1. 4% RE + ¥ 3.2% Total Activity. Represented 2.7 x 1075 ye/ee a 12% Pasco Total Activity Represented , 1.4 x 1079 we/ce FIGURE 3 Relative Abundance of Radionuclides in Columbia River Water at Several Locations. AEC-GE RICHLARS. WASH. Annual Averages 1963

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