Table 2.

Heavy metals concentrations of leachate samples collected from sanitary landfills in Alexandria, Egypt.

Heavy metals	Unit	Leachate samples
n = 6		Min	Max	$\overline{x}\pm \text{SD}$
Nickel	mg/l	0.037	0.167	0.096 ± 0.015
Lead	mg/l	0.008	0.025	0.019 ± 0.004
Copper	mg/l	0.016	0.172	0.074 ± 0.026
Manganese	mg/l	0.260	1.39	0.839 ± 0.165
Chromium	mg/l	0.029	0.094	0.062 ± 0.044
Cadmium	mg/l	0.002	0.261	0.094 ± 0.026
Zinc	mg/l	0.342	0.974	0.749 ± 0.235
Iron	mg/l	0.426	11.49	6.314 ± 1.827