Mean soil heavy metals and metalloid concentrations.

Table 7: Mean soil heavy metals and metalloid concentrations.

Site	Treatment Adubriem	Treatment T1	Treatment Nhyiaeso	Treatment Sansu	Treatment T3	Control, San, Nhy, T1	Control Adubriem	Control T3	Dutch IL	Dutch IVL
Type of Site	Pit	Pit	Pit	WRF	Pit		Pit	Pit
Sample count	2	2	2	1	3	1	1	1
Parameter
As	343	736	529	353	111	167	74	50	29	55
Cd	0.1	0.06	0.1	0.03	0.03	0.1	0.03	0.03	1	12
Co	6.8	19.8	6.3	9.4	2.5	4.2	3.2	2.1	9	240
Cr	126	62	88	100	106	159	204	174	100	340
Cu	44	42	22	72	20	21	20	12	36	190
Hg	0.05	0.02	0.04	0.04	0.05	0.17	0.06	0.04	0.3	10

All measurements in mg/kg; San = Sansu; Nhy = Nhyiaeso; WRF = Waste rock facility.