Table 4.

Concentrations (mean ± SD) of the studied heavy metals in the samples bottled water brands.

Heavy Metals		Cr	Cd	Pb	Ni	As
WHO and ISIRI limits		0.05	0.003	0.01	0.01	0.07
Brands	A	0.027 ± 0.001	0.0019 ± 0.00021	0.0027 ± 0.0013	0.022 ± 0.001	0.001 ± 0.00013
	B	0.031 ± 0.0082	0.0019 ± 0.00022	0.001 ± 0.0010	0.025 ± 0.002	0.002 ± 0.00010
	C	0.027 ± 0.0074	0.0025 ± 0.0001	0.007 ± 0.0015	0.003 ± 0.001	0
	D	0.034 ± 0.0095	0.0019 ± 0.00024	0.0025 ± 0.0013	0.024 ± 0.003	0.003 ± 0.00105
	E	0.032 ± 0.0080	0.002 ± 0.0001	0.001 ± 0.0012	0.0023 ± 0.0001	0.002 ± 0.00011
	F	0.024 ± 0.0066	0.0015 ± 0.0003	0.007 ± 0.0014	0.0025 ± 0.0002	0.002 ± 0.00010
	G	0.031 ± 0.0082	0.0017 ± 0.00022	0.002 ± 0.0011	0.0021 ± 0.0001	0.002 ± 0.00011
	H	0.025 ± 0.0072	0.0019 ± 0.00024	0.0055 ± 0.0010	0.017 ± 0.001	<LOD
	I	0.005 ± 0.0009	0.0018 ± 0.00026	0.0065 ± 0.0016	0.025 ± 0.0023	0.0025 ± 0.00011
	J	0.029 ± 0.0072	0.0019 ± 0.00027	0.003 ± 0.0011	0.029 ± 0.001	0
	K	0.025 ± 0.0062	0.0021 ± 0.0002	0.004 ± 0.0012	0.002 ± 0.0012	0.0035 ± 0.00010