Table 4 Heavy metal concentrations in selected soil samples.

Samples	As (mg/kg)	Pb (mg/kg)	Cd (mg/kg)	Samples	As (mg/kg)	Pb (mg/kg)	Cd (mg/kg)
SC	0.001	0.006	0.002	S15	0.001	0.182	0.017
S2	0.006	0.685	0.013	S18	0.001	0.935	0.013
S3	0.001	0.734	0.019	S23	0.004	1.424	0.038
S4	0.009	2.628	0.021	S24	0.001	0.572	0.014
S6	0.008	1.083	0.041	S26	0.006	0.314	0.013
S7	0.004	0.494	0.014	S31	0.001	0.234	0.012
S8	0.001	0.524	0.015	S32	0.006	1.932	0.029
S11	0.005	0.476	0.013	S35	0.007	0.355	0.015
S12	0.003	0.821	0.014	S37	0.001	0.440	0.010
S13	0.001	1.735	0.019	S40	0.003	0.674	0.043
S14	0.002	0.855	0.014

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