Sample

Net Area ¹³⁷Cs

$A_{{}^{137}\text{C}\text{s}}$ (Bq/kg)

Net Area ⁴⁰K

$A_{{}^{40}\text{K}}$ (Bq/kg)

FM1

168 ± 42

0.62

2996 ± 116

39.23

FM2

148 ± 42

0.55

2912 ± 115

33.63

FM3

191 ± 41

0.71

2526 ± 112

28.02

FSM

200 ± 74

0.74

2248 ± 125

22.42