Table 7.

Heavy metals concentration μg/kg in plants samples of HIE, Peshawar.

Sampling sites	Cd μg/kg		Cr μg/kg		Pb μg/kg		Zn μg/kg
	Root	Shoot	Root	Shoot	Root	Shoot	Root	Shoot
1	19	3	3021	1015	215	7	2308	2002
2	7	1	2611	1038	10	12	1920	1991
3	1	0	1042	11	2813	1109	968	72
4	11	5	834	1010	1015	781	2733	1519
Control	3	0	201	702	399	1	2501	36
WHO/FAO Limits (2007) [36]	200 μg/kg		5000 μg/kg		5000 μg/kg		60000 μg/kg