Physiochemical analyses and molecular characterization of heavy metal-resistant bacteria from Ilesha gold mining sites in Nigeria

Journal of Genetic Engineering and Biotechnology

Table 5 Physicochemical properties of soil samples

		Samples
Physicochemical parameters	1A	1B	2A	2B	3A	3B	4A	4B	5A	5B	6A	6B	7A	7B
pH	6.4	6.1	6.3	5.5	5.1	5.6	5.7	6.5	6.4	6.3	5.8	6.1	6.6	6.9
Conductivity µS/cm	36.7	66.2	37.8	61.1	105.2	40.1	34.6	28.5	60.4	29.8	17.8	30.1	126.1	31.1
Carbon (%)	0.41	0.43	0.38	0.30	0.41	0.42	0.38	0.39	0.42	0.29	0.63	0.65	0.55	0.38
Organic Matter (%)	0.33	0.36	0.44	0.42	0.31	0.34	0.30	0.33	0.38	0.40	0.41	0.40	0.83	0.36
Nitrogen (%)	0.03	0.04	0.04	0.03	0.26	0.03	0.02	0.02	0.02	0.02	0.02	0.03	0.05	0.03
Phosphorus (Mg/Kg)	5.11	5.16	6.0	6.03	4.16	4.0	5.01	5.08	5.54	4.83	6.22	6.28	6.18	5.01
Ca²⁺ (CmolKg⁻¹)	1.0	1.12	0.96	1.11	1.01	1.12	0.79	0.83	1.04	1.06	1.11	0. 93	1.00	0.81
Mg²⁺ (CmolKg⁻¹)	0.72	0.73	0.61	0.60	0.58	0.61	0.69	0.70	0.62	0.64	0.70	0.68	0.55	0.71