Table 4 Mean element concentration in corn (µg/g dwt ± SEM).

From: Trace elements concentrations in soil contaminate corn in the vicinity of a cement-manufacturing plant: potential health implications

Element

Farmlands

FC (N = 19)

F1 (N = 20)

F2 (N = 24)

F3 (N = 12)

F4 (N = 14)

Arsenic

0.01 ± 0.00

(0.01)

<0.01–0.03

0.01 ± 0.00

(<0.01)

<0.01–0.04

<0.01 ± 0.00

(<0.01)

<0.01–0.03

<0.01 ± 0.00

(<0.01)

<0.01–0.01

0.01 ± 0.00

(<0.01)

<0.01–0.03

Cadmium

<0.01 ± 0.00

(<0.01)

<0.01–0.01

<0.01 ± 0.00

(<0.01)

<0.01–0.01

<0.01 ± 0.00

(<0.01)

<0.01–0.03

BDL

<0.01 ± 0.00

(<0.01)

<0.01–<0.01

Chromium

3.56 ± 0.65

(2.58)

1.98–14.3

2.31 ± 0.07

(2.23)

1.85–2.99

2.20 ± 0.18

(2.05)

1.63–6.14

2.08 ± 0.17

(1.82)

1.75–3.57

2.57 ± 0.17

(2.41)

1.83–3.95

Copper

3.13 ± 0.48

(2.76)

1.51–11.3

2.36 ± 0.16

(2.37)

1.15–3.85

2.21 ± 0.18

(2.04)

1.00–5.44

2.79 ± 0.25

(2.71)

1.53–4.26

2.27 ± 0.18

(2.36)

1.16–3.45

Iron

42.0 ± 3.1

(40.8)

24.3–86.9

40.0 ± 3.7

(32.7)

25.8–84.8

35.2 ± 3.6

(28.4)

21.2–99.1

41.1 ± 4.4

(36.1)

26.4–77.7

44.3 ± 6.4

(35.6)

25.3–118

Lead

0.02 ± 0.00

(0.02)

0.01–0.09

0.01 ± 0.00

(0.01)

<0.01–0.05

0.23 ± 0.03

(0.29)

<0.01–0.36

0.30 ± 0.03

(0.26)

0.25–0.51

0.38 ± 0.02

(0.36)

0.29–0.60

Nickel

2.10 ± 0.28

(1.76)

1.27–6.64

1.45 ± 0.05

(1.38)

1.12–1.86

1.46 ± 0.08

(1.50)

1.06–3.05

1.33 ± 0.11

(1.14)

1.10–2.28

1.70 ± 0.11

(1.59)

1.30–2.69

Zinc

28.4 ± 1.2

(29.0)

20.5–40.0

23.9 ± 1.1

(24.4)

14.1–33.5

13.5 ± 1.3

(14.6)

<0.01–23.8

6.32 ± 1.11

(5.80)

<0.01–13.7

18.2 ± 2.1

(16.6)

9.08–31.4

  1. Median (in parenthesis) and range of values also shown.
  2. SEM standard error of the mean, BDL below detection limit (Cd LOD = < 0.01 ng/g), N number of replicate samples.
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