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Table 3 Summary statistics of heavy metals (mg/kg) compared with the average of worldwide soil

From: Soil characterization and heavy metal pollution assessment in Orabi farms, El Obour, Egypt

Parameter

As

Cd

Cr

Cu

Pb

Mean

147.46

2.31

44.50

4.10

13.01

Median

147.8

1.9

44.5

4.55

10.8

SD

21.60

1.48

11.89

1.55

4.57

Min.

117.5

1.5

29.05

2

8.65

Max.

182.8

6.75

67.25

6.45

22.5

Q1

134.5

1.8

36.35

2.825

9.55

Q3

156.2

2

49.375

5.05

14.95

WSA

5

0.5

54

25

25

  1. WSA world soil average (after Kabata-Pendias and Mukherjee 2007)