## 3 Results and Discussion
### Effect of Mineral-Impregnated PSC on the Decontamination of Paddy Soil
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Consituents**} & \({}^{134}\)**Cs** & \({}^{137}\)**Cs** & \({}^{134}\)**Cs + \({}^{137}\)**Cs** & **Decontamination** \\  & **(Bq\(\cdot\)kg\({}^{-1}\)) 1** & **(Bq\(\cdot\)kg\({}^{-1}\)) 1** & **(Bq\(\cdot\)kg\({}^{-1}\)) 1** & **Degree (\%) 2** \\ \hline Contaminated soil (S) & 7467 \(\pm\) 34 & 20,639 \(\pm\) 82 & 28,106 \(\pm\) 89 & \\ Dilution by PSC * & 5974 \(\pm\) 27 & 16,511 \(\pm\) 64 & 22,485 \(\pm\) 71 & \\ (S) + PSC * & 6023 \(\pm\) 28 & 15,615 \(\pm\) 64 & 21,638 \(\pm\) 70 & 3.8 \(\pm\) 0.3 \\ (S) + 1\% CsCl-PSC * & 6497 \(\pm\) 30 & 16,991 \(\pm\) 69 & 23,488 \(\pm\) 75 & \(-\)4.5 \(\pm\) 0.3 \\ (S) + 5\% CsCl-PSC * & 7829 \(\pm\) 35 & 18,940 \(\pm\) 76 & 26,769 \(\pm\) 84 & \(-\)19.1 \(\pm\) 0.3 \\ (S) + 1\% BaCl\({}_{2}\)-PSC * & 6627 \(\pm\) 31 & 16,435 \(\pm\) 67 & 23,062 \(\pm\) 74 & \(-\)2.6 \(\pm\) 0.3 \\ (S) + 6\% BaCl\({}_{2}\)-PSC * & 7798 \(\pm\) 35 & 18,653 \(\pm\) 75 & 26,451 \(\pm\) 83 & \(-\)17.6 \(\pm\) 0.3 \\ (S) + 6\% CaCl\({}_{2}\)-PSC * & 8096 \(\pm\) 36 & 19,480 \(\pm\) 78 & 27,576 \(\pm\) 86 & \(-\)22.6 \(\pm\) 0.3 \\ (S) + 6\% MgCl\({}_{2}\)-PSC * & 8877 \(\pm\) 39 & 21,711 \(\pm\) 86 & 30,588 \(\pm\) 95 & \(-\)36.0 \(\pm\) 0.4 \\ (S) + 5\% KCl-PSC * & 4686 \(\pm\) 23 & 11,587 \(\pm\) 49 & 16,273 \(\pm\) 54 & 27.6 \(\pm\) 0.3 \\ (S) + 1\% CsCl * & 8676 \(\pm\) 38 & 20,747 \(\pm\) 83 & 29,423 \(\pm\) 91 & \(-\)30.9 \(\pm\) 0.4 \\ (S) + 1\% KCl * & 8625 \(\pm\) 38 & 20,560 \(\pm\) 82 & 29,185 \(\pm\) 90 & \(-\)29.8 \(\pm\) 0.4 \\ (S) + 1\% Cs\({}_{2}\)SO\({}_{4}\)-PSC * & 6769 \(\pm\) 31 & 17,517 \(\pm\) 71 & 24,286 \(\pm\) 77 & \(-\)8.0 \(\pm\) 0.3 \\ (S) + 0.5\% K\({}_{2}\)SO\({}_{4}\)-PSC * & 5628 \(\pm\) 27 & 16,210 \(\pm\) 66 & 21,838 \(\pm\) 71 & 2.9 \(\pm\) 0.3 \\ (S) + 5\% K\({}_{2}\)SO\({}_{4}\)-PSC * & 5650 \(\pm\) 27 & 14,052 \(\pm\) 58 & 19,702 \(\pm\) 64 & 12.4 \(\pm\) 0.3 \\ (S) + 1\% MgSO\({}_{4}\)-PSC * & 5152 \(\pm\) 25 & 12,861 \(\pm\) 54 & 18,013 \(\pm\) 59 & 19.9 \(\pm\) 0.3 \\ (S) + 5\% MgSO\({}_{4}\)-PSC * & 5542 \(\pm\) 27 & 15,875 \(\pm\) 65 & 21,417 \(\pm\) 70 & 4.7 \(\pm\) 0.3 \\ (S) + 1\% CuSO\({}_{4}\)-PSC * & 5176 \(\pm\) 25 & 12,775 \(\pm\) 53 & 17,951 \(\pm\) 59 & 20.2 \(\pm\) 0.3 \\ (S) + 5\% CuSO\({}_{4}\)-PSC * & 5622 \(\pm\) 27 & 16,227 \(\pm\) 66 & 21,849 \(\pm\) 71 & 2.8 \(\pm\) 0.3 \\ (S) + 1\% FeO\({}_{4}\)-PSC * & 5944 \(\pm\) 28 & 15,912 \(\pm\) 65 & 21,856 \(\pm\) 71 & 2.8 \(\pm\) 0.3 \\ (S) + 1\% ZnS\({}_{4}\)-PSC * & 5799 \(\pm\) 27 & 15,607 \(\pm\) 64 & 21,406 \(\pm\) 69 & 4.8 \(\pm\) 0.4 \\ \hline \hline \end{tabular} \({}^{(1)}\) Concentrations of radiocesium in the soil were corrected for soil moisture content. * Corrected for the dilution effect by addition of PSC. \({}^{(2)}\) The decontamination degrees of the various mineral-impregnated PSCs were calculated based on the basis of the mixture of soil (S) and PSC. The \({}^{134}\)Cs and \({}^{137}\)Cs in the soils used in the experiments above were not corrected to 15 March 2011.  
\end{table} 
Table 7: Effect of various mineral salt-impregnated PSCs on their decontamination capability.