Pb

Cd

Cu

Ni

Hg

Cinnamomum  L.

14.22±0.23

1.03±0.05

14.2±3.3

3.49±0.06

0.51±0.03

Cichorium intybus L.

21.66±0.22

2.24±0.06

7.51±0.07

22.11±0.10

0.56±0.06

Glycrrhiza  glabra  L.”

11.23±0.16

6.76±0.25

117±25

4.87±0.16

0.61±0.04

Nigella sativa L.

9.06±0.03

0.61±0.03

146±45

6.03±0.10

0.39±0.04

Zingiber Officinale L.

7.06±0.21

1.64±0.11

56.8±3.4

2.37±0.61

0.58±0.05

Ziziphus Vulgaris L.

38.21±0.06

8.74±0.04

8.00±0.07

22.96±0.12

0.69±0.06

Table 2: Heavy metal in medicinal plants determined in 2011. [ metal concentration ( μg/g of the dried plant materials)]