River Name | Sample label | 238U | 235U | 234U | 230Th | 226Ra | 210Pb | 232Th | 228Ra | 40K |
Luilu river | Lsed7 | 79 ± 3 | 4.8 ± 0.4 | 87 ± 3 | 36 ± 2 | 74 ± 4 | 88 ± 6 | 25 ± 2 | 42.4 ± 4.9 | 363 ± 31 |
Lsed6 | 72 ± 3 | 3.4 ± 0.4 | 66 ± 3 | 104 ± 6 | 80 ± 6 | 88 ± 6 | 54 ± 3 | 30.8 ± 6.0 | 136 ± 30 | |
Lsed5 | 57 ± 2 | 2.7 ± 0.4 | 47 ± 2 | 40 ± 2 | 68 ± 4 | 89 ± 6 | 28 ± 2 | 67.0 ± 10.0 | 161 ± 42 | |
Lsed3 | 337 ± 13 | 17.0 ± 2.0 | 351 ± 13 | 191 ± 14 | 236 ± 21 | 233 ± 19 | 16 ± 2 | 20.0 ± 2.4 | 225 ± 19 | |
Lsed2 | 171 ± 7 | 10.0 ± 1.0 | 178 ± 7 | 133 ± 10 | 245 ± 18 | 171 ± 14 | 19 ± 2 | 23.0 ± 3.3 | 227 ± 19 | |
Lsed1 | 207 ± 10 | 8.0 ± 1.0 | 201 ± 10 | 108 ± 8 | 330 ± 34 | 166 ± 13 | 24 ± 2 | 64.0 ± 11.0 | 154±49 | |
Average ± SD | 154 ± 6 | 7.6 ± 0.9 | 155 ± 6 | 102 ± 7 | 172 ± 14 | 139 ± 11 | 28 ± 2 | 41 ± 6 | 211 ± 76 | |
Lsol4a | 59 ± 3 | 3.4 ± 0.6 | 66 ± 3 | 46 ± 12 | 84 ± 6 | 98 ± 7 | 42 ± 11 | 72.0 ± 12.0 | 189 ± 62 | |
Lsol4b | 63 ± 3 | 2.1 ± 0.5 | 59 ± 2 | 39 ± 3 | 71 ± 5 | 107 ± 6 | 44 ± 3 | 55.9 ± 8.4 | 291 ± 41 | |
Average ± SD | 61 ± 3 | 2.8 ± 0.6 | 62 ± 3 | 42 ± 8 | 78 ± 6 | 102 ± 7 | 43 ± 7 | 64 ± 10 | 240 ± 52 | |
Dilala river | Dsed2 | 189 ± 8 | 9.3 ± 0.8 | 180 ± 8 | 105 ± 16 | 171 ± 11 | 234 ± 19 | 23 ± 6 | 34.9 ± 3.5 | 117 ± 12 |
Dsed3 | 207 ± 7 | 11.1 ± 0.8 | 197 ± 7 | 165 ± 42 | 247 ± 62 | 211 ± 17 | 35 ± 11 | 33.3 ± 3.9 | 93 ± 12 | |
Dsed4 | 973 ± 29 | 46.0 ± 2.0 | 1013 ± 30 | 285 ± 16 | 242 ± 32 | 271 ± 20 | 33 ± 2 | 29.8 ± 3.8 | 76 ± 13 | |
Dsed5 | 333 ± 14 | 15.0 ± 2.0 | 302 ± 13 | 185 ± 21 | 158 ± 19 | 246 ± 19 | 30 ± 4 | 31.6 ± 4.9 | 62 ± 13 | |
Dsed1 | 188 ± 6 | 8.7 ± 0.8 | 170 ± 6 | 110 ± 20 | 193 ± 13 | 131 ± 10 | 28 ± 7 | 37.1 ± 3.6 | 129 ± 13 | |
Average ± SD | 378 ± 13 | 18 ± 1 | 372 ± 13 | 170 ± 23 | 202 ± 27 | 219 ± 17 | 29.8 ± 6.0 | 33 ± 4 | 95 ± 13 | |
Worldwide soil [22] | Average | 35 |
|
|
| 35 |
| 30 |
| 400 |