Physicochemical Characterisation of Water and Sediment of the Semimechanized Artisanal Gold Mining Environment of the Béké Locality

Table 3

Results of heavy metal concentrations in water samples.

Parameters (mg/L)	Samples									WHO standards (mg/L)
	W1	W2	W3	W4	W5	W6	W7	W8	W9
Lead (Pb)	0.31	1.52	0.01	1.19	1.49	2.27	2.67	0.34	2.37	0.01
Iron (Fe)	8.1	6.7	0	2.36	9.28	7.88	6.92	5.52	1.18	0.3
Mercury (Hg)	0.02	0.31	0	0.63	0.65	0.94	1.28	1.57	1.26	0.001
Zinc (Zn)	—	—	0.2	0.76	—	—	—	—	1.32	3 mg/L