The Hazard Content of Cadmium, Lead, and Other Trace Elements in Some Medicinal Herbs and Their Water Infusions

Table 4

Average contents of heavy metals (mg/kg) in the raw samples and water infusions of the medicinal herbs.

Element	Zn	Fe	Cu	Co	Cr	Mn	Ni	Cd	Pb
Dried herbs (mg/kg)	45.8 ± 5.1	440 ± 77	12 ± 1.0	0.91 ± 0.3	2.9 ± 0.6	162 ± 38	5.4 ± 0.8	0.5 ± 0.1	10.4 ± 1.8
Infusions (mg/kg)	16.5 ± 3.7	15.6 ± 4.3	5.8 ± 0.8	0.26 ± 0.1	0.4 ± 0.1	86 ± 9	1.7 ± 0.5	0.07 ± 0.1	2.1 ± 0.8
Extraction efficiency (%)	36 ± 4	3.5 ± 4	48 ± 5	29 ± 5	15 ± 7	53 ± 6	31 ± 7	14 ± 6	20 ± 5