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

Table 3

The average contents of heavy metals (mg/kg) in the tested raw medicinal herbal samples.

Sample code	Zn	Fe	Cu	Co	Cr	Mn	Ni	Cd	Pb
H1	54.2 ± 8.6	574 ± 260	8.6 ± 3.4	1.8 ± 1.3	2.1 ± 0.9	99 ± 136	5.9 ± 3.7	0.7 ± 0.4
H2	51.8 ± 11.4	6.60 ± 0.55	13.5 ± 1.8	<0.03	2.7 ± 0.7	28.7 ± 9.1	6.34 ± 2.7	0.2 ± 0.04	5.5 ± 3.2
H3	4.9 ± 0.4	49.5 ± 3.9	7.9 ± 0.7	<0.03	3.7 ± 0.6	2.1 ± 0.3	1.9 ± 0.9	0.5 ± 0.1	17.7 ± 4.8
H4	49.8 ± 3.3	824 ± 344	12.6 ± 1.3	<0.03	1.52 ± 1.3	185 ± 209	3.05 ± 2.8	0.17 ± 0.34	8.01 ± 5.4
H5	39.6 ± 12	1121 ± 308	16.9 ± 5.9	1.02 ± 1.1	3.10 ± 0.6	148 ± 41	4.45 ± 3.7	0.63 ± 0.58	16.2 ± 3.1
H6	24.7 ± 1.9	171 ± 14.7	7.12 ± 5.3	0.04 ± 0.04	<0.04	251 ± 92	0.67 ± 0.93	0.25 ± 0.36	7.90 ± 0.36
H7	72.3 ± 21.1	86.2 ± 111	13.9 ± 4.5	1.65 ± 0.56	2.1 ± 2.7	57.7 ± 0.2	3.98 ± 4.9	0.38 ± 0.15	5.33 ± 3.3
H8	59.4 ± 2.2	7.4 ± 0.6	16.3 ± 2.2	0.77 ± 0.13	1.8 ± 0.2	20.5 ± 6.2	3.91 ± 2.4	<0.01	<0.04
H9	26.3 ± 4.9	136 ± 89	6.70 ± 1	<0.03	3.2 ± 4.1	250 ± 112	2.4 ± 1.6	0.62 ± 0.06	11.0 ± 1.4
H10	46.5 ± 11.8	556 ± 139	17. 3 ± 2.4	0.29 ± 0.5	0.71 ± 0.09	324 ± 252	2.47 ± 1.7	0.92 ± 0.5	19.3 ± 10.6
H11	135 ± 8.5	328 ± 30.5	14.7 ± 3.1	5.19 ± 0.67	5.52 ± 0.9	660 ± 77	12.7 ± 4.3	1.01 ± 0.9	17.4 ± 10.4
H12	38.9 ± 15.1	437 ± 33.6	9.79 ± 1.3	0.60 ± 0.8	1.88 ± 2.2	69.3 ± 2.7	6.01 ± 3.3	0.69 ± 0.9	6.56 ± 9.2
H13	36.4 ± 5.5	24.8 ± 4.2	9.13 ± 1.7	<0.03	<0.04	26.5 ± 15.1	0.53 ± 0.8	<0.01	<0.01
H14	36.7 ± 6.1	311 ± 16.1	17.5 ± 3.7	0.07 ± 0.4	0.21 ± 0.29	382 ± 14	4.27 ± 1.39	0.40 ± 0.16	8.26 ± 4.61
H15	35.3 ± 13.2	686 ± 108	7.77 ± 1.17	<0.03	6.74 ± 2.47	39.7 ± 20	8.40 ± 1.8	0.66 ± 0.26	8.14 ± 4.33
M1	45.6 ± 5.7	519 ± 321	14.5 ± 6.2	0.18 ± 0.3	3.75 ± 3.8	353 ± 65	7.25 ± 6.17	0.44 ± 0.5	5.74 ± 9.9
M2	52.9 ± 7.6	693 ± 64	6.89 ± 0.9	<0.03	2.40 ± 0.6	69.7 ± 17.6	8.38 ± 2.1	<0.01	18.20 ± 6.9
M3	56.6 ± 18.4	800 ± 72	15.8 ± 3.1	3.92 ± 0.14	2.00 ± 0.17	85.2 ± 10.8	11.2 ± 1.3	1.27 ± 0.63	18.6 ± 8.2
M4	40.9 ± 7.0	570 ± 114	10.5 ± 2.3	3.59 ± 0.74	2.99 ± 0.26	76.7 ± 10	10.9 ± 0.62	<0.01	6.1 ± 4.0
M5	41.0 ± 4.5	282 ± 63	8.5 ± 1.1	1.87 ± 0.33	8.67 ± 0.61	182 ± 31	6.2 ± 1.5	0.38 ± 0.1	9.2 ± 5.3
M6	37.5 ± 8.4	13.1 ± 5.3	17.9 ± 4.7	0.78 ± 1.1	8.27 ± 1.6	56.4 ± 9.6	7.7 ± 1.0	0.15 ± 0.05	18.6 ± 26.0
M7	26.1 ± 3.5	62.4 ± 18.3	7.3 ± 1.1	<0.03	2.94 ± 0.24	24.9 ± 7.4	4.6 ± 2.3	0.76 ± 0.34	4.24 ± 1.3
M8	37.3 ± 5.9	783 ± 59	12.3 ± 3.6	0.34 ± 0.48	1.48 ± 0.34	276 ± 59	4.2 ± 0.8	1.25 ± 0.36	28.7 ± 10.5
Statistical values of all 54 samples
Highest	141	1477	23.7	5.67	9.43	715	15.7	1.25	28.7
Lowest	4.63	6.23	3.37	nd	nd	1.82	0.53	nd	nd
Mean	45.8	440	12.0	0.91	2.90	162	5.44	0.5	10.4
Median	43.7	409	11.5	0	2.29	79.9	5.40	0.4	9.25
St. dev.	23.1	357	4.62	1.44	2.60	172	3.82	0.45	8.44