放射性同位元素の種類及び数量(2017年12月現在)
| 種 類 | 一日最大使用数量 (MBq) | 年間使用数量 (MBq) | 物理的状態 | 化学形等 |
|---|---|---|---|---|
| C-14 | 1.5 | 100 | 固体・気体・液体 | 全ての化合物 |
| Po-210 | 0.001 | 0.2 | 固体・液体 | |
| Cm-244 | 0.002 | 0.2 | ||
| H-3 | 10 | 500 | ||
| Ni-63 | 0.3 | 5 | ||
| P-32 | 0.01 | 2 | ||
| P-33 | 0.01 | 2 | ||
| S-35 | 0.2 | 3 | ||
| Ca-45 | 0.1 | 2 | ||
| Tc-99 | 0.2 | 3 | ||
| Cl-36 | 0.1 | 2 | ||
| Sr-89 | 0.05 | 1 | ||
| Y-90 | 0.05 | 3 | ||
| Sr-90 | 0.05 | 3 | ||
| Fe-55 | 0.2 | 1 | ||
| Pb-210 | 0.002 | 4 | ||
| Cr-51 | 2 | 8 | ||
| Am-241 | 0.011 | 0.4 | ||
| Ce-144 | 0.1 | 3 | ||
| I-129 | 0.02 | 1 | ||
| Cd-109 | 0.1 | 1 | ||
| W-188 | 0.1 | 5 | ||
| I-128 | 0.0005 | 0.1 | ||
| Eu-155 | 0.05 | 1 | ||
| Rb-86 | 0.01 | 2 | ||
| I-125 | 0.02 | 2 | ||
| Co-57 | 0.1 | 1 | ||
| Tc-99m | 10 | 100 | ||
| Ce-139 | 0.1 | 1 | ||
| Ru-109 | 0.1 | 1 | ||
| Am-243 | 0.001 | 0.01 | ||
| Mo-99 | 10 | 100 | ||
| Np-237 | 0.002 | 0.5 | ||
| Sn-113 | 0.1 | 2 | ||
| I-131 | 2.6 | 80 | ||
| Se-75 | 0.1 | 1 | ||
| I-126 | 0.005 | 1 | ||
| Ba-133 | 0.2 | 1 | ||
| Sb-125 | 0.1 | 1 | ||
| Ru-103 | 0.05 | 1 | ||
| Sr-85 | 0.3 | 5 | ||
| Zn-65 | 0.2 | 2 | ||
| Cs-137 | 0.5 | 10 | ||
| Tc-95m | 0.1 | 2 | ||
| Nb-95 | 0.5 | 3 | ||
| Mn-54 | 0.5 | 6 | ||
| Co-58 | 0.2 | 2 | ||
| Ge-68 | 0.01 | 1 | ||
| Fe-59 | 0.2 | 2 | ||
| Eu-152 | 0.1 | 1 | ||
| Eu-154 | 0.1 | 2 | ||
| Ta-182 | 0.05 | 1 | ||
| Nb-94 | 0.05 | 1 | ||
| Cs-134 | 0.1 | 2 | ||
| Ra-226 | 0.005 | 0.4 | ||
| Sb-124 | 0.1 | 1 | ||
| Sc-46 | 0.1 | 0.5 | ||
| I-130 | 0.005 | 1 | ||
| Co-60 | 0.5 | 10 | ||
| Y-88 | 0.1 | 1 | ||
| Ag-110m | 0.1 | 1 | ||
| Na-24 | 0.05 | 1 | ||
| Kr-85 | 0.5 | 10 | 気 体 |