Sample ID

Location

Activity concentration (Bq・kg⁻¹)

X

Y

²²⁶Ra

²³²Th

⁴⁰K

Liaodong Bay

LDB-1

120.42

39.68

36.1

43.9

562.0

LDB-2

120.61

40.11

14.7

26.3

873.6

LDB-3

120.68

40.07

28.5

56.8

705.5

LDB-4

120.69

40.20

32.8

48.1

752.5

LDB-5

120.77

40.16

34.9

53.8

919.5

LDB-6

120.84

40.11

17.9

36.0

405.9

LDB-7

120.87

39.41

27.7

44.2

638.8

LDB-8

121.32

40.25

19.9

25.3

677.2

North Yellow Sea

NYS-1

123.40

38.09

25.9

39.7

649.0

NYS-2

123.41

38.33

27.4

51.2

635.0

NYS-3

123.46

38.86

32.7

68.4

1044.0

NYS-4

123.51

38.37

37.4

82.5

803.0

NYS-5

123.51

38.51

37.3

80.0

841.0

NYS-6

123.58

38.98

12.2

24.1

894.0

NYS-7

123.64

38.89

36.6

73.7

847.0

NYS-8

123.65

38.05

61.2

82.3

722.0

NYS-9

123.65

38.78

14.9

28.6

959.0

NYS-10

123.68

38.73

19.8

50.1

829.6

NYS-11

123.70

38.17

22.1

43.1

922.0

NYS-12

123.71

38.84

23.9

55.3

881.0

NYS-13

123.78

39.11

13.5

28.4

776.0

NYS-14

123.81

39.23

12.4

23.7

905.0

NYS-15

123.82

38.65

21.3

56.9

830.5

NYS-16

123.83

38.42

18.9

44.4

827.1

NYS-17

123.84

38.59

20.9

55.3

816.1

NYS-18

123.85

38.12

22.5

43.2

1028.0

NYS-19

123.87

38.63

19.6

51.4

848.2

NYS-20

123.91

38.70

16.6

43.3

919.0

NYS-21

123.91

38.09

16.0

32.9

993.0

NYS-22

123.93

38.83

13.3

23.4

781.0

NYS-23

123.94

38.87

13.3

35.4

909.2

NYS-24

124.00

38.61

15.2

43.4

862.9

NYS-25

124.01

38.94

11.9

26.0

874.7