Table 4.
Radium equivalent (Raeq), absorbed gamma radiation dose rate (D), and indoor annual effective dose rate (AEDR) in Ruri.
| Sample ID | 226Ra Raeq (ARa) | 232Th Raeq (1.429ATh) | 40K Raeq (0.0769Ak) | Raeq(Total) (Bg/kg) | D (nGy/h) | Indoor AEDR (mSv/y) |
|---|---|---|---|---|---|---|
| Ruri1 | 92 ± 7 | 1701 ± 136 | 45 ± 4 | 1837 ± 147 | 221 ± 20 | 1.14 ± 0.09 |
| Ruri2 | 103 ± 8 | 2634 ± 211 | 35 ± 3 | 2771 ± 222 | 267 ± 24 | 1.38 ± 0.11 |
| Ruri3 | 81 ± 6 | 1035 ± 83 | 40 ± 3 | 1156 ± 92 | 446 ± 40 | 2.30 ± 0.18 |
| Ruri4 | 21 ± 2 | 576 ± 46 | 26 ± 2 | 622 ± 50 | 497 ± 45 | 2.56 ± 0.20 |
| Ruri5 | 63 ± 5 | 3075 ± 246 | 25 ± 2 | 3163 ± 253 | 555 ± 50 | 2.86 ± 0.23 |
| Ruri6 | 71 ± 6 | 2215 ± 177 | 57 ± 5 | 2343 ± 187 | 632 ± 57 | 3.26 ± 0.26 |
| Ruri7 | 110 ± 9 | 2123 ± 170 | 57 ± 5 | 2290 ± 183 | 661 ± 60 | 3.41 ± 0.27 |
| Ruri8 | 226 ± 18 | 1512 ± 121 | 37 ± 3 | 1775 ± 142 | 764 ± 69 | 3.94 ± 0.31 |
| Ruri9 | 145 ± 12 | 1280 ± 102 | 44 ± 3 | 1469 ± 118 | 785 ± 71 | 4.05 ± 0.32 |
| Ruri10 | 189 ± 15 | 1328 ± 106 | 24 ± 2 | 1540 ± 123 | 817 ± 74 | 4.21 ± 0.34 |
| Ruri11 | 46 ± 4 | 1248 ± 100 | 12 ± 1 | 1306 ± 104 | 850 ± 76 | 4.38 ± 0.35 |
| Ruri12 | 87 ± 7 | 1766 ± 141 | 56 ± 4 | 1909 ± 153 | 979 ± 88 | 5.05 ± 0.40 |
| Ruri13 | 196 ± 16 | 1716 ± 137 | 62 ± 5 | 1975 ± 158 | 1000 ± 90 | 5.15 ± 0.41 |
| Ruri14 | 174 ± 14 | 829 ± 66 | 28 ± 2 | 1030 ± 82 | 1180 ± 106 | 6.08 ± 0.49 |
| Ruri15 | 68 ± 5 | 426 ± 34 | 17 ± 1 | 511 ± 41 | 1342 ± 121 | 6.92 ± 0.55 |
| Average | 111 ± 09 | 1564 ± 125 | 38 ± 3 | 1713 ± 137 | 733 ± 66 | 3.78 ± 0.30 |