Heavy metals	Fe	Cu	Co	Zn	Mn	Pb	Cr	Cd
Sample	Fe	Cu	Co	Zn	Mn	Pb	Cr	Cd
1	0.147	0.013	0.004	0.009	0.005	-	0.009	0.005
2	0.115	0.028	0.004	0.04	0.004	0.003	0.005	0.005
3	0.02	0.002	0.002	0.071	0.002	0.002	0.003	0.004
4	0.121	-	-	0.027	0.003	0.005	0.005	0.004
5	0.236	0.001	0.001	0.011	0.003	0.001	0.006	0.002
Average	0.128 ± 0.077	0.011 ± 0.014	07003 ± 0.002	0.032 ± 0.025	0.003 ± 0.001	0.003 ± 0.002	0.006 ± 0.002	0.004 ± 0.001
±standard deviation	0.128 ± 0.077	0.011 ± 0.014	07003 ± 0.002	0.032 ± 0.025	0.003 ± 0.001	0.003 ± 0.002	0.006 ± 0.002	0.004 ± 0.001
WHO standards	0.5 - 5.0	2	1	0.4	0.05	0.01	0.01	0.003