Sample NO | 238U (Bq·kg−1) | 232Th (Bq·kg−1) | 40K (Bq·kg−1) | Raeq (Bq·kg−1) | Radiation Dose (nGy/h) |
1 | 29.93 | 45.19 | 259.84 | 113.21 | 53.84 |
2 | 40.44 | 41.62 | 247.76 | 117.78 | 55.43 |
3 | 38.53 | 50.18 | 222.62 | 125.93 | 59.21 |
4 | 37.92 | 33.03 | 159.23 | 96.34 | 44.82 |
5 | 39.08 | 37.31 | 198.74 | 106.62 | 49.89 |