Sample No.

Sector

226Ra

232Th

40K

S1

Bamako 1

22.67 ± 2.95

37.78 ± 5.02

622.28 ± 85.36

S2

Bamako 2

22.67 ± 2.48

35.56 ± 4.10

627.63 ± 85.62

S3

Ségou 1

17.26 ± 1.81

20.41 ± 2.52

52.06 ± 15.49

S4

Ségou 2

22.66 ± 2.35

26.02 ± 2.97

41.33 ± 8.26

S5

Sikasso 1

28.20 ± 2.63

36.81 ± 3.92

245.34 ± 27.37

S6

Sikasso 2

25.95 ± 2.82

34.03 ± 4.10

210.93 ± 30.62

S7

Kayes 1

105.43 ± 10.36

180.85 ± 19.69

76.71 ± 14.96

S8

Kayes 2

77.01 ± 7.91

68.41 ± 8.20

185.16 ± 28.88

S9

Kayes 3

85.93 ± 8.35

85.65 ± 9.41

143.46 ± 21.38

Range

17.26 - 105.43

20.41 - 180.85

41.33 - 627.63

Average

45.31 ± 4.63

58.39 ± 6.66

244.99 ± 35.33