Sample type

Sample code

Activity concentrations (Bq/kg)

226Ra

232Th

40K

137Cs

Soil

S1

15.37

28.29

546.35

0.83

S2

14.93

25.90

560.05

0.17

S3

14.38

22.85

510.92

1.56

S4

13.90

24.56

595.18

0.01

S5

13.10

24.07

600.75

L.D.L

S6

13.97

29.03

583.05

0.25

Range

13.10 - 15.37

22.85 - 29.03

510.92 - 600.75

0.01 - 1.56

Average

14. 28

25.78

566.05

0.56

UNSCEAR 2000

30

35

400

Granite rock samples

G1

42.25

102.36

1480.26

1.15

G2

37.36

83.93

1031.26

0.87

G3

53.33

109.22

1058.50

0.75

G4

45.17

103.89

1489.20

0.61

G5

53.67

128.75

1076.01

0.57

G6

38.21

104.71

1272.81

0.04

Range

37.36 - 53.67

83.93 - 128.75

1031.26 - 1489.2

0.04 - 1.15

Average

45

106

1235

0.67

UNSCEAR 2000

50

50

500