Sample type

Sample code

Radioactivity concentration (Bq/kg⁻¹)

²²⁶Ra

²³²Th

⁴⁰K

Iron

F1

154.04 ± 4.89

162.28 ± 2.27

36.51 ± 2.17

F2

171.34 ± 5.12

135.63 ± 2.11

35.69 ± 2.0

F3

224.53 ± 7.0

164.63 ± 2.22

46.29 ± 3.21

F4

147.38 ± 4.56

115.62 ± 2.12

17.31 ± 1.12

F5

169.16 ± 5.54

131.81 ± 2.0

27.58 ± 1.6

Average

(range)

173.29

(147.38 ? 22,453)

141.99

(115.62 - 164.63)

32.68

(17.31 - 46.29)

Cooper

Cu1

1.23 ± 0.22

0.34 ± 0.02

11.94 ± .28

Cu2

3.26 ± 0.56

0.82 ± 0.03

45.82 ± 1.78

Cu3

1.31 ± 0.08

0.98 ± 0.04

67.37 ± 2.28

Cu4

5.58 ± 0.42

0.60 ± 0.03

16.37 ± 0.16

Cu5

1.79 ± 0.42

0.26 ± 0.02

8.43 ± 0.42

Average

(RANGE)

2.63

(1.23 - 5.58)

0.60

(0.26 - 0.98)

29.99

(8.43 - 67.37)

Aluminium

Al1

2.76 ± 0.76

0.54 ± 0.04

23.36 ± 1.14

Al2

1.56 ± 0.17

6.05 ± 1.50

36.99 ± 1.61

Al3

3.08 ± 0.61

2.64 ± 0.86

27.91 ± 1.31

Al4

7.24 ± 0.73

5,12 ± 1.15

55.49 ± 2.29

Al5

5.23 ± 0.74

10.12 ± 2.22

64.58 ± 2.65

Average

(range)

3.97

(1.56 - 7.24)

4.89

(0.54 - 10.12)

41.67

(23.36 - 64.580)

Wood

Wo1

1.30 ± 0.22

0.27 ± .03

10.81 ± .28

Wo2

10.75 ± 2.31

2.46 ± 0.04

7.79 ± 0.41

Wo3

2.46 ± 0.65

3.51 ± 1.33

44.57 ± 2.01

Wo4

5.56 ± 0.92

4.06 ± 0.34

72.26 ± 3.13

Wo5

1.03 ± 0.03

5.25 ± 0.58

15.58 ± 0.81

Average

(range)

4.22

(1.03 - 10.75)

3.11

(0.27 - 5.25)

30.20

(7.79 - 72.26)