2. Concentrations (Mean ± SD) of Metals in the EGCS Effluent.

	EGCS effluent (μg L–1)	LOD (μg L–1)	LOQ (μg L–1)
Vanadium(V)	249.7 ± 1.7	0.005	0.015
Chromium (Cr)	26.0 ± 0.5	0.001	0.03
Manganese (Mn)	1.26 ± 0.03	0.005	0.015
Iron (Fe)	112.0 ± 3.1	0.01	0.03
Cobalt (Co)	0.527 ± 0.01	0.0001	0.0003
Nickel (Ni)	69.4 ± 1.7	0.001	0.003
Copper (Cu)	1.593 ± 0.121	0.002	0.006
Zinc (Zn)	94.8 ± 3.6	0.005	0.015
Arsenic (As)	1.85 ± 0.05	0.02	0.06
Cadmium (Cd)	0.031 ± 0.0016	0.0001	0.0003
Mercury (Hg)	0.0011 ± 0.0002	0.0001	0.0003
Lead (Pb)	0.1677 ± 0.0011	0.001	0.003
Uranium (U)	6.57 ± 0.22	0.001	0.003