Environmental Systems Research

Table 3 Pb concentration (mg/kg), in soil, spinach and maize from the cultivated land across the study sites

From: Appraisal of lead (Pb) contamination and potential exposure risk associated with agricultural soils and some cultivated plants in gold mines

Sites	Farm	Pb concentrations (mg/kg)
Sites	Farm	Soil	Spinach	Maize
Abare	1	383.48 ± 0.21a	9.815 ± 0.0567a	3.6 ± 0.0769b
	2	326.28 ± 0.22c	8.32 ± 1.7363a	4.2 ± 0.351a
	3	366.62 ± 0.25b	6.1 ± 0.1732b	3.76 ± 0.0312b
	4	383.60 ± 0.18a	6.78 ± 0.1519b	3.64 ± 0.0779b
Bagega	1	68.40 ± 0.18a	3.575 ± 0.0082	1.91 ± 0.0173b
	2	69.18 ± 8.37a	2.88 ± 0.0779	2.51 ± 0.0229a
	3	76.44 ± 2.13b	3.055 ± 0.0952	2.34 ± 0.0150a
	4	67.74 ± 0.10a	2.755 ± 0.0173	1.85 ± 0.0029b
Dareta	1	18.24 ± 0.27c	0.47 ± 0.0173	1.265 ± 0.0086a
	2	42.00 ± 0.10a	0.53 ± 0.1723	0.35 ± 0.0229c
	3	23.4 ± 0.18b	0.325 ± 0.0173	0.365 ± 0.0173c
	4	17.88 ± 0.10c	0.285 ± 0.150	0.44 ± 0.01730b

DPR, (2002) for soil: 85 mg/kg, EPA, (2004) for soil: 400 mg/kg, FAO/WHO (mg/kg) for crop: 35, FAO/WHO (mg/kg) for vegetable: 0.3; values are means ± standard errors (n = 3); means with the same superscript letter within each column are not significantly different at p < 0.05

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