Metal

Mean

(mg/kg)

Median

Min.

Max.

Range

Standard

Deviation

Coefficient Of Variance %

Standard

Error

World Average Data

Dutch Soil

Standards

Cd

0.64

0.58

0.47

0.87

0.40

0.12

19.03

0.02

0.4

0.8

Co

3.43

3.46

2.27

4.72

2.45

0.70

20.56

0.15

8

20

Cr

11.59

10.50

7.90

21.22

13.32

3.13

27.07

0.70

70

100

Cu

2.01

1.52

0.87

4.97

4.10

1.09

54.24

0.24

30

36

Ni

8.96

8.27

5.57

12.22

6.65

2.14

23.97

0.48

50

35

Pb

3.82

3.85

2.62

5.30

2.67

0.81

21.35

0.18

35

85

Zn

5.50

5.06

2.75

10.40

7.65

2.05

37.33

0.45

90

140

Fe

235.77

207.50

145.02

417.70

272.67

66.29

28.11

14.82

40,000

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