Table 3.

Contamination factor at Landmark University farm.

Toxic elements	Contamination Factor (Range)	Contamination Factor	Interpretation
As	0.80–2.87	2.33	Low to Moderate Contamination
Cd	0.10–0.20	0.34	Low to Moderate Contamination
Co	0.30–1.02	0.46	Low to Moderate Contamination
Cr	0.46–0.87	0.72	Low Contamination
Cu	0.66–1.29	0.88	Low to Moderate Contamination
Ni	0.28–0.6	0.47	Low Contamination
Mn	0.49–1.90	0.79	Low to Moderate Contamination
Pb	0.92–2.93	1.47	Low to Moderate Contamination
Zn	0.33–2.21	0.75	Low to Moderate Contamination