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Characteristics of thoron progeny concentration CTnP in units of Bq/m3 for group 1 with undetectable CTn and group 2 with detectable CTn in units of Bq/m3
| Samples | AM | CTn | CTnP | ||||
|---|---|---|---|---|---|---|---|
| GM | GSD | AM (range) | GM | GSD | |||
| Group 1, CTn < DL | 134 | – | – | – | 0.73 (0.071, 7.45) | 0.44 | 2.52 |
| Group 2, CTn ≥ DL | 113 | 60 | 27 | 2.94 | 0.99 (0.077, 8.03) | 0.59 | 2.56 |
AM arithmetic mean, GM geometric mean, GSD geometric standard deviation
