Table 4 Trace element composition of the sediments in the Yangtze River

Tuotuohe

33.48

344.12

9.39

0.51

35.21

9.74

2.28

25.49

50.90

5.67

21.05

Jinshajiang

3.34

431.12

29.43

1.23

26.73

12.66

5.65

39.62

81.95

9.32

34.89

Shigu

3.68

347.83

15.94

1.09

19.72

11.77

3.47

38.55

79.27

8.81

32.55

Panzhihua 1

4.85

464.53

12.16

1.51

27.73

7.19

3.31

37.22

78.54

8.86

33.84

Yalongjiang

4.38

1042.56

16.75

1.93

47.35

12.40

3.90

87.02

140.34

15.22

53.32

Panzhihua 2

4.92

427.76

15.61

1.74

24.87

8.12

3.59

41.38

88.21

10.11

39.01

Yibin 1

5.31

1178.82

21.96

1.73

86.48

8.39

4.57

48.82

100.45

11.07

41.76

Daduhe

2.34

456.18

23.50

2.47

55.73

19.67

10.19

56.79

107.09

12.74

46.46

Minjiang 1

4.65

505.81

11.29

1.29

23.61

10.85

2.83

39.77

80.14

9.20

34.42

Yibin 2

1.03

1074.33

9.07

1.36

60.83

10.32

4.35

39.23

81.41

9.02

34.34

Chongqing 1

4.68

358.44

32.02

2.38

21.65

22.49

7.15

73.90

131.94

16.42

63.03

Jialingjiang

4.96

756.74

25.71

1.36

23.50

16.10

3.43

56.35

105.34

12.82

46.24

Chongqing 2

1.07

800.32

22.42

1.29

44.14

10.31

4.23

45.95

95.25

9.71

36.57

Fuling 1

6.77

1119.80

24.71

2.00

81.77

24.38

6.36

68.01

135.52

15.11

57.24

Wujiang

6.31

566.85

6.87

1.40

36.06

10.05

3.38

35.28

79.81

8.45

31.71

Fuling 2

3.99

329.41

21.61

1.60

20.12

15.81

4.40

50.23

99.98

11.71

44.16

Badong

8.85

420.29

7.04

1.32

34.46

7.24

3.23

27.10

72.31

6.87

25.89

Yichang

1.15

455.99

7.95

0.96

47.99

8.72

4.09

34.53

76.50

7.86

29.80

Yueyang 1

7.11

569.57

14.62

1.62

50.25

17.72

4.65

51.09

107.43

11.85

45.67

Yuanjiang

5.48

512.91

14.43

1.36

28.29

8.50

3.19

31.46

64.23

7.30

27.01

Xiangjiang

24.61

831.80

33.05

2.55

189.50

37.43

10.37

65.80

136.58

14.90

56.00

Yueyang 2

5.77

396.93

22.10

2.01

44.79

19.15

5.26

56.45

113.87

12.55

47.87

Wuhan 1

5.01

383.33

10.30

1.64

46.70

10.44

2.97

41.03

84.44

9.54

35.35

Hanjiang

3.85

554.83

11.40

1.48

30.07

11.14

2.81

43.85

100.37

10.66

40.06

Wuhan 2

5.38

386.41

10.01

1.60

33.08

10.36

2.76

40.01

80.96

9.71

36.72

Jiujiang

4.85

367.64

14.18

1.60

36.52

12.61

3.61

45.72

93.33

10.89

40.93

Ganjiang

11.72

312.62

25.78

3.36

39.18

19.74

5.83

47.33

98.18

11.03

39.11

Hukou

7.17

595.00

11.86

1.26

73.31

9.72

4.38

50.30

126.50

12.16

47.06

Nanjing

3.90

373.04

82.84

3.39

56.16

31.31

12.05

103.11

202.50

23.37

87.56

Changxing

4.47

298.53

29.98

1.93

17.85

19.97

5.80

70.35

132.72

16.03

59.50