Samples

Heavy Metal Concentration in mg/kg

Cu

Ni

Zn

Cd

Cr

Pb

Spinach leaf

10.99

1.15

59.03

0.12

0.91

2.47

African Eggplant leaf

18.15

1.79

34.48

0.08

0.06

0.49

Corchorus olitorius leaf

8.27

1.01

29.98

0.03

1.05

4.1

Amaranthus hybridus leaf

9.4

1.57

41.4

0.1

0.97

3.61

Cabbage leaf

5

1.78

51.7

0.06

1.57

3.09

Eggplant

12.21

0.73

23.13

0.03

0.65

5.11

African Eggplant

11.39

1.13

20.73

0.04

0

2.14

Okra

11.27

1.92

46.68

0.01

1.05

8.59

Pepper

9.8

1.26

22.11

0.06

2.53

4.29

Tomato

15.11

2.26

71.29

0.18

1.42

5.97

Limit values in plants

40

70 - 80

20

0.2

2.3

0.3