Sample

Type

226Ra series

232Th series

40K (1461 keV)

214Pb (295 keV)

214Pb (352 keV)

214Bi (609 keV)

214Bi (1120 keV)

212Pb (239 keV)

208Tl (583 keV)

228Ac (911 keV)

228Ac (969 keV)

Stone

ST1

5.78 ± 1.99

4.75 ± 1.35

13.17 ± 1.72

28.04 ± 3.03

11.00 ± 2.16

4.89 ± 0.74

25.25 ± 2.59

16.34 ± 2.93

803.07 ± 16.63

ST2

9.03 ± 1.37

14.21 ± 2.08

13.39 ± 1.26

0.00

9.43 ± 1.40

4.45 ± 0.21

18.81 ± 1.70

7.90 ± 2.07

257.16 ± 11.37

ST3

6.16 ± 1.25

10.53 ± 1.78

10.82 ± 1.72

13.03 ± 0.51

9.39 ± 0.99

4.53 ± 0.72

17.65 ± 1.63

16.56 ± 0.85

295.14 ± 9.67

ST4

12.34 ± 1.87

19.27 ± 2.70

2.43 ± 0.61

8.29 ± 1.64

15.91 ± 2.04

15.12 ± 0.62

19.61 ± 0.74

11.97 ± 1.34

503.70 ± 6.11

ST5

2.39 ± 0.62

22.24 ± 1.96

4.98 ± 1.11

5.30 ± 1.26

11.90 ± 1.69

1.86 ± 0.36

29.28 ± 2.22

10.48 ± 1.34

230.33 ± 6.45

Range

7.9 ± 4.6 to 15.8 ± 4.9

12.0 ± 5.9 to 17.4 ± 10.7

230 ± 6 to 803 ± 17

Sand

SA1

14.44 ± 2.87

10.72 ± 1.60

9.73 ± 1.06

25.66 ± 4.17

1.64 ± 1.87

2.41 ± 0.46

10.08 ± 1.41

4.24 ± 1.34

137.80 ± 12.22

SA2

11.35 ± 2.87

11.36 ± 1.60

9.85 ± 1.06

25.48 ± 4.17

13.97 ± 1.87

7.52 ± 0.46

26.80 ± 1.41

9.79 ± 1.34

497.29 ± 12.22

SA3

3.02 ± 0.50

5.73 ± 0.80

7.91 ± 0.61

4.47 ± 0.76

5.84 ± 1.17

1.64 ± 0.18

11.93 ± 0.89

17.16 ± 1.83

153.46 ± 4.92

SA4

24.12 ± 7.48

13.55 ± 3.07

16.50 ± 1.67

12.64 ± 1.14

23.22 ± 4.55

8.57 ± 0.95

31.17 ± 1.63

31.40 ± 3.05

333.29 ± 5.09

SA5

7.85 ± 4.73

14.60 ± 3.19

16.26 ± 4.30

24.39 ± 2.40

28.88 ± 4.79

9.74 ± 0.95

27.55 ± 1.93

22.12 ± 2.68

298.55 ± 4.92

Range

11.6 ± 2.5 to 18.1 ± 5.5

4.6 ± 3.8 to 23.6 ± 10.7

138 ± 12 to 497 ± 12

Cement

CE1

7.50 ± 1.87

20.10 ± 3.31

33.60 ± 2.63

12.90 ± 1.64

27.45 ± 3.21

1.56 ± 0.62

3.44 ± 0.74

31.35 ± 1.34

271.20 ± 6.11

CE2

15.63 ± 1.87

19.14 ± 1.96

10.37 ± 0.66

42.54 ± 5.18

11.30 ± 1.87

2.25 ± 0.44

22.03 ± 1.41

22.03 ± 1.46

212.61 ± 8.32

CE3

12.88 ± 1.74

14.21 ± 2.03

20.75 ± 1.87

23.84 ± 3.41

15.16 ± 1.23

7.79 ± 0.46

28.15 ± 2.59

31.58 ± 2.80

259.87 ± 8.32

CE4

43.12 ± 3.86

25.08 ± 2.33

33.33 ± 2.12

46.12 ± 3.92

16.39 ± 0.99

11.59 ± 0.51

30.83 ± 2.30

33.18 ± 3.20

426.23 ± 10.01

CE5

26.91 ± 1.62

25.75 ± 2.52

31.72 ± 3.23

25.59 ± 1.39

21.34 ± 2.80

8.48 ± 0.10

25.51 ± 1.41

38.51 ± 2.80

319.94 ± 11.54

Range

15.0 ± 4.4 to 33.8 ± 9.0

14.4 ± 8.6 to 23.5 ± 12.4

213 ± 8 to 426 ± 10

Ceramic Tile

CT1

29.04 ± 4.49

13.12 ± 3.93

20.57 ± 1.52

9.46 ± 2.15

23.75 ± 3.68

0.94 ± 0.51

0.00

33.48 ± 3.78

500.39 ± 7.47

CT2

25.64 ± 4.49

6.97 ± 0.61

8.99 ± 1.57

12.34 ± 2.27

11.02 ± 1.58

3.65 ± 0.82

12.94 ± 1.70

16.47 ± 2.80

207.43 ± 4.41

CT3

80.90 ± 9.10

77.10 ± 4.24

82.18 ± 2.53

94.04 ± 3.16

66.00 ± 5.66

21.18 ± 1.13

49.12 ± 2.44

58.66 ± 3.66

517.80 ± 5.94

CT4

41.74 ± 7.35

12.87 ± 3.19

18.64 ± 1.77

21.29 ± 2.53

16.65 ± 4.38

4.38 ± 0.82

12.65 ± 1.78

7.84 ± 2.56

223.73 ± 3.90

CT5

26.93 ± 4.49

28.03 ± 3.50

32.22 ± 1.92

37.63 ± 2.53

30.19 ± 5.14

13.72 ± 0.95

39.86 ± 1.78

27.41 ± 3.53

319.08 ± 5.09

CT6

45.01 ± 8.72

52.59 ± 3.80

58.54 ± 2.17

50.65 ± 3.03

60.45 ± 5.25

17.91 ± 1.08

53.03 ± 2.15

63.40 ± 3.29

475.28 ± 5.09

CT7

25.16 ± 9.72

35.65 ± 7.92

67.11 ± 3.74

28.88 ± 2.65

34.83 ± 5.60

0.00

35.25 ± 2.67

36.02 ± 4.14

655.43 ± 8.32

Range

17.3 ± 11.8 to 80.1 ± 2.6

10.4 ± 5.4 to 59.0 ± 5.3

207 ± 4 to 655 ± 8

Marble

IM1

33.61 ± 2.87

14.31 ± 2.52

16.10 ± 1.67

16.17 ± 2.15

24.44 ± 1.28

3.07 ± 0.38

17.30 ± 1.78

15.59 ± 2.68

236.61 ± 4.41

IM2

14.93 ± 7.35

12.01 ± 3.13

13.55 ± 1.67

25.20 ± 2.27

9.67 ± 4.09

5.32 ± 0.85

15.79 ± 1.70

21.97 ± 2.44

242.98 ± 4.07

Range

13.5 ± 1.5 to 21.3 ± 10.7

15.8 ± 6.2 to 19.1 ± 4.5

237 ± 4 to 243 ± 4