| Sa. no. | Specific activities (Bq/kg) | ||
| 226Ra | 232Th | 40K | |
| P1 | 22.26 ± 0.01 | 21.96 ± 0.01 | 67.10 ± 0.01 |
| P2 | 11.51 ± 0.04 | 14.15 ± 0.03 | 904.37 ± 0.02 |
| P3 | 184.68 ± 0.04 | 162.85 ± 0.01 | 1736.30 ± 0.02 |
| P4 | 17.58 ± 0.03 | 13.01 ± 0.02 | 1449.60 ± 0.02 |
| P5 | 108.35 ± 0.03 | 111.96 ± 0.02 | 1678.60 ± 0.01 |
| P6 | 104.85 ± 0.03 | 153.16 ± 0.01 | 1280.08 ± 0.02 |
| P7 | 192.67 ± 0.05 | 102.20 ± 0.01 | 648.53 ± 0.01 |
| C8 | 76.80 ± 0.05 | 135.81 ± 0.02 | 1292.16 ± 0.03 |
| C9 | 59.72 ± 0.04 | 68.86 ± 0.01 | 997.40 ± 0.01 |
| C10 | 100.24 ± 0.03 | 184.04 ± 0.02 | 997.40 ± 0.01 |
| C11 | 74.80 ± 0.05 | 76.98 ± 0.01 | 1284.55 ± 0.02 |
| C12 | 59.03 ± 0.06 | 85.98 ± 0.01 | 177.55 ± 0.02 |
| C13 | 81.22 ± 0.05 | 91.93 ± 0.01 | 1348.96 ± 0.02 |
| C14 | 75.88 ± 0.05 | 140.26 ± 0.01 | 470.96 ± 0.01 |
| C15 | 87.28 ± 0.04 | 160.10 ± 0.02 | 506.30 ± 0.02 |
| Range | 11.51 - 192.67 | 13.01 - 184.04 | 67.10 - 1736.30 |
| Mean | 83.83 | 91.05 | 751.07 |
| Worldwide* | 35 | 30 | 400 |