Element

Grade

Total

Zhongshan

Shuicheng

Panzhou

Field No.

%

Field No.

%

Field No.

%

Field No.

%

B

Very low

8

1.60

0

0.00

3

1.67

5

2.27

Low

39

7.80

15

15.00

6

3.33

18

8.18

Middle

144

28.80

23

23.00

43

23.89

78

35.45

High

145

29.00

17

17.00

51

28.33

77

35.00

Very high

164

32.80

45

45.00

77

42.78

42

19.09

Total

500

100.00

100

100.00

180

100.00

220

100.00

Cu

Very low

17

3.40

2

2.00

8

4.44

7

3.18

Low

20

4.00

5

5.00

12

6.67

3

1.36

Middle

35

7.00

6

6.00

17

9.44

12

5.45

High

311

62.20

55

55.00

116

64.44

140

63.64

Very high

117

23.40

32

32.00

27

15.00

58

26.36

Total

500

100.00

100

100.00

180

100.00

220

100.00

Fe

Very low

0

0.00

0

0.00

0

0.00

0

0.00

Low

0

0.00

0

0.00

0

0.00

0

0.00

Middle

1

0.20

1

1.00

0

0.00

0

0.00

High

242

48.40

66

66.00

68

37.78

108

49.09

Very high

257

51.40

33

33.00

112

62.22

112

50.91

Total

500

100.00

100

100.00

180

100.00

220

100.00

Mn

Very low

2

0.40

0

0.00

2

1.11

0

0.00

Low

8

1.60

1

1.00

4

2.22

3

1.36

Middle

21

4.20

9

9.00

7

3.89

5

2.27

High

119

23.80

32

32.00

61

33.89

26

11.82

Very high

350

70.00

58

58.00

106

58.89

186

84.55

Total

500

100.00

100

100.00

180

100.00

220

100.00

Mo

Very low

15

3.00

0

0.00

7

3.89

8

3.64

Low

37

7.40

1

1.00

15

8.33

21

9.55

Middle

49

9.80

8

8.00

17

9.44

24

10.91

High

108

21.60

27

27.00

27

15.00

54

24.55

Very high

291

58.20

64

64.00

114

63.33

113

51.36

Total

500

100.00

100

100.00

180

100.00

220

100.00

Zn

Very low

5

1.00

2

2.00

3

1.67

0

0.00

Low

9

1.80

0

0.00

1

0.56

8

3.64

Middle

32

6.40

7

7.00

12

6.67

13

5.91

High

229

45.80

41

41.00

85

47.22

103

46.82

Very high

225

45.00

50

50.00

79

43.89

96

43.64

Total

500

100.00

100

100.00

180

100.00

220

100.00