Ra_eq (Bq∙l⁻¹)

Activity concentration (Bq∙l⁻¹)

Sample

code

¹³⁷Cs

⁴⁰K

²³⁸Th

²²⁶Ra

8.52

1.06 ± 0.001

61.46 ± 0.001

1.56 ± 0.004

1.55 ± 0.001

P1

11.67

ND

39.26 ± 0.001

5.19 ± 0.006

1.23 ± 0.001

P2

3.71

0.96 ± 0.001

ND

2.10 ± 0.005

0.60 ± 0.002

P3

2.46

0.72 ± 0.001

ND

1.70 ± 0.003

ND

P4

51.37

0.55 ± 0.001

342.59 ± 0.009

17.48 ± 0.011

13.61 ± 0.005

P5

38.66

0.98 ± 0.001

36.34 ± 0.001

18.43 ± 0.003

9.50 ± 0.003

P6

9.65

0.75 ± 0.001

40.64 ± 0.001

2.60 ± 0.001

2.82 ± 0.003

P7

9.28

1.47 ± 0.001

10.04 ± 0.001

5.24 ± 0.007

1.02 ± 0.002

P8

21.18

1.19 ± 0.001

11.74 ± 0.001

11.23 ± 0.005

4.22 ± 0.001

P9

6.64

0.63 ± 0.001

6.13 ± 0.001

2.24 ± 0.001

2.96 ± 0.002

P10

5.43

ND

5.63 ± 0.001

1.90 ± 0.003

2.27 ± 0.003

P11

19.36

ND

31.93 ± 0.001

3.92 ± 0.004

11.30 ± 0.001

P12

5.17

ND

ND

3.15 ± 0.005

0.67 ± 0.009

P13

2.93

ND

4.05 ± 0.001

ND

2.12 ± 0.006

P14

7.16

ND

2.47 ± 0.001

3.28 ± 0.005

2.27 ± 0.006

P15

8.15

ND

ND

2.84 ± 0.003

4.09 ± 0.005

P16

1.24

ND

ND

0.78 ± 0.001

ND

P17

5.58

ND

ND

1.60 ± 0.004

1.77 ± 0.005

P18

2.46

ND

ND

1.16 ± 0.001

0.79 ± 0.002

P19

3.25

ND

ND

1.33 ± 0.004

1.35 ± 0.004

p20

8.92

ND

48.88 ± 0.001

2.25 ± 0.003

1.94 ± 0.002

P21

12.30

ND

57.14 ± 0.007

3.70 ± 0.004

2.60 ± 0.002

P22