Table 5 Transfer factor from surface soil to corn (TF ± SEM) and the range of values.

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

Element

Transfer Factor

FC (N = 19)

F1 (N = 20)

F2 (N = 24)

F3 (N = 12)

F4 (N = 14)

Arsenic

0.02 ± 0.00

(0.01–0.09)

0.01 ± 0.00

(<0.01–0.07)

0.01 ± 0.00

(<0.01–0.01)

0.01 ± 0.00

(<0.01–0.01)

0.03 ± 0.01

(0.01–0.17)

Cadmium

0.07 ± 0.2

(<0.01–0.23)

0.02 ± 0.01

(<0.01–0.09)

<0.01 ± 0.00

NA

<0.01 ± 0.00

NA

<0.01 ± 0.00

NA

Chromium

0.05 ± 0.01

(0.01–0.24)

0.04 ± 0.00

(0.01–0.07)

0.05 ± 0.01

(<0.01–0.10)

0.05 ± 0.01

(<0.01–0.10)

0.07 ± 0.01

(0.03–0.13)

Copper

0.80 ± 0.15

(0.28–3.39)

0.62 ± 0.06

(0.19–1.21)

3.74 ± 0.76

(0.17–10.6)

5.02 ± 1.63

(0.32–15.4)

1.17 ± 0.12

(0.52–2.23)

Iron

<0.01 ± 0.00

(<0.01–0.01)

0.01 ± 0.01

(<0.01–0.15)

<0.01 ± 0.00

(<0.01–0.01)

0.01 ± 0.00

(<0.01–0.01)

0.02 ± 0.00

(0.01–0.05)

Lead

<0.01 ± 0.00

(<0.01–0.01)

<0.01 ± 0.00

(<0.01–0.01)

0.34 ± 0.07

(<0.01–0.76)

0.27 ± 0.07

(0.04–0.65)

0.10 ± 0.01

(0.07–0.17)

Nickel

0.26 ± 0.03

(0.09–0.59)

0.30 ± 0.03

(0.06–0.60)

0.09 ± 0.01

(<0.01–0.20)

0.19 ± 0.03

(<0.01–0.30)

0.67 ± 0.09

(0.20–1.33)

Zinc

1.77 ± 0.06

(<0.01–1.83)

67.3 ± 55.1

(<0.01–232)

3.61 ± 1.41

(<0.01–13.4)

NA

NA

4.50 ± 0.95

(<0.01–5.63)

  1. SEM standard error of the mean, NA not applicable, N number of replicate samples.
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