Microbial and heavy metal contamination in herbal medicine: a prospective study in the central region of Saudi Arabia

Table 2 Heavy metals concentrations in the tested samples of herbal medicine products

No. of sample	Element ratio in the samples (ppm)
FDA limit	Chromium 50	Copper	Iron	Lead 20	Manganese	Arsenic 3	Zinc
1					184		209
2			450
3			876
4			464				488
5					208
6			1970
7			4200
8			4280
9	638	63,000	10,200	2930		86,000	2030
10		7270	7090			679
11			18,600		232
12	268		10,600		273		206
13			5150		1340
14			4650		722		275
15			6890		346		307
16			28,900		1400		424
17			1530				662
18			18,300		587		247
19			5630		186
20			942
21			12,900		294		394
22			11,100		310
23		205	5190		256		471
24		1350	18,000		324
25		232	5020		690		857
26		2850	1790		500		210
27			6670	830	4050	36	627
28			9800		1240		205
29			10,200		1200		365
30			6670		3330		660
31		216			3090		443
32			65,100		742		343

ISSN: 2662-7671