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Table 1 Concentrations of heavy metal of all samples analysed in mg/kg

From: Impact of dumpsite compost on heavy metal accumulation in some cultivated plants

Concentration (mg/kg)/Trace metals

Cd

Cr

Cu

Mn

Ni

Fe

Pb

Zn

Dumpsite compost

6.00 ± 0.02

89.00 ± 0.63

21.00 ± 0.32

101.00 ± 2.01

17.12 ± 0.23

1570.02 ± 15.21

29.31 ± 0.31

315.18 ± 2.23

Soil for cultivation

0.40 ± 0.01

21.31 ± 0.32

1.72 ± 0.01

12.98 ± 0.15

2.43 ± 0.08

520.11 ± 5.31

0.98 ± 0.01

67.31 ± 1.04

Total in soil

6.40 ± 0.03

110.31 ± 0.95

22.72 ± 0.33

113.98 ± 2.16

19.55 ± 0.31

2090.13 ± 20.52

30.29 ± 0.32

382.49 ± 3.27

Maize plant

5.88 ± 0.03

47.17 ± 0.51

17.01 ± 0.05

41.46 ± 0.36

11.56 ± 0.11

832.10 ± 9.57

24.07 ± 0.09

164.92 ± 3.06

Spinach vegetable

5.94 ± 0.02

54.29 ± 0.40

18.69 ± 0.17

50.53 ± 0.69

12.07 ± 0.09

910.60 ± 12.20

26.10 ± 0.12

180.45 ± 1.70

Absorbed by maize

0.52 ± 0.01

63.14 ± 0.44

5.71 ± 0.28

72.52 ± 1.8

7.99 ± 0.2

1258.03 ± 10.95

6.22 ± 0.23

217.57 ± 0.21

Absorbed by spinach

0.46 ± 0.01

56.02 ± 0.55

4.03 ± 0.16

63.45 ± 1.47

7.48 ± 0.22

1179.53 ± 8.32

4.19 ± 0.20

202.04 ± 1.57

(Directive 2014/118/EU) limit

1.50

100.00

140.00

420.00

70.00

NL

100.00

300.00

  1. The EU does not typically set a specific limit for iron in agricultural soil as it is considered an essential nutrient
  2. NL: No Limit