Table 3 Activity concentrations of natural radionuclides 238U, 226Ra, 232Th and 40K in fertiliser samples.
Sample code | Activity concentrations (Bq∙ kg− 1) | |||
|---|---|---|---|---|
238U | 226Ra | 232Th | 40K | |
F1 | 254 ± 16 | 295 ± 18 | 40 ± 5 | 69 ± 5 |
F2 | 643 ± 45 | 665 ± 41 | 23 ± 2 | 278 ± 13 |
F3 | 1990 ± 127 | 1321 ± 80 | 14 ± 1 | 72 ± 5 |
F4 | 2140 ± 136 | 1492 ± 91 | 10.5 ± 0.9 | 60 ± 5 |
F5 | 212 ± 14 | 245 ± 15 | 15 ± 1 | 4399 ± 185 |
F6 | 314 ± 22 | 333 ± 21 | 14 ± 1 | 3432 ± 145 |
F7 | 164 ± 10 | 270 ± 17 | 14 ± 1 | 4980 ± 210 |
F8 | 342 ± 21 | 154 ± 10 | 4.2 ± 0.4 | 4908 ± 206 |
F9 | 376 ± 27 | 167 ± 11 | 3.8 ± 0.4 | 4050 ± 171 |
Average | 715 ± 259 | 549 ± 170 | 12 ± 2 | 2472 ± 759 |
MIN | 164 | 154 | 3.8 | 60 |
MAX | 2140 | 1492 | 40 | 4980 |
