Table 3 Mean element concentration in surface soil (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

0.49 ± 0.04

(0.43)

0.30–1.02

0.81 ± 0.05

(0.77)

0.43–1.27

0.46 ± 0.10

(0.28)

<0.01–1.49

0.24 ± 0.06

(0.37)

<0.01–0.60

0.22 ± 0.01

(0.22)

0.15–0.32

Cadmium

0.05 ± 0.00

(0.05)

0.04–0.07

0.11 ± 0.04

(0.05)

0.04–0.89

<0.01 ± 0.00

(<0.01)

<0.01–0.02

0.02 ± 0.02

(<0.01)

<0.01–0.21

<0.01 ± 0.00

(<0.01)

<0.01–0.03

Chromium

98.4 ± 13.1

(85.7)

27.0–229

104 ± 19

(55)

34.5–307

29.3 ± 7.1

(13.5)

<0.01–117

15.9 ± 4.2

(21.0)

<0.01–33.8

43.4 ± 3.5

(42.0)

25.8–79.0

Copper

4.14 ± 0.17

(4.05)

3.01–5.44

4.18 ± 0.29

(3.69)

2.14–6.79

4.32 ± 0.95

(1.90)

0.27–15.0

2.60 ± 0.65

(2.86)

0.27–6.13

2.04 ± 0.12

(1.96)

1.43–2.92

Iron

15350 ± 1376

(12501)

6544–30127

7697 ± 790

(6535)

198–14565

13894 ± 795

(13234)

6753–22321

6970 ± 369

(6657)

4935–9686

2927 ± 129

(2783)

2286–4122

Lead

6.64 ± 0.42

(5.85)

4.82–10.0

5.15 ± 0.32

(4.96)

2.95–7.93

3.46 ± 0.67

(1.94)

0.47–9.29

3.23 ± 0.74

(3.86)

0.47–6.72

4.00 ± 0.17

(4.11)

3.04–4.79

Nickel

9.66 ± 1.80

(7.09)

4.17–37.1

6.67 ± 1.18

(4.88)

2.20–22.1

11.9 ± 4.0

(2.98)

(<0.01–90.6)

5.12 ± 1.54

(5.12)

<0.01–15.6

3.09 ± 0.44

(2.48)

1.67–7.16

Zinc

1.56 ± 1.08

(<0.01)

<0.01–16.3

0.47 ± 0.30

(<0.01)

<0.01–5.20

3.31 ± 1.36

(<0.01)

<0.01–27.5

BDL

0.89 ± 0.50

(<0.01)

<0.01–5.97

  1. Median (in parenthesis) and range of values also shown.
  2. SEM standard error of the mean, BDL below detection limit (Zn LOD = 0.15 ng/g), N number of replicate samples.
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