Table 7.

Concentration of metals content (iron, Fe; arsenic, As; cadmium, Cd; mercury, Hg and lead, Pb expressed as µg g⁻¹ DW) for sample. Values are given as samples mean ± SD (standard deviation, n = 3). Values higher than that allowed by Commission Regulation (EC) No 1881/2006 of 19 December 2006, setting maximum levels for certain contaminants in foodstuffs (http://data.europa.eu/eli/reg/2006/1881/2022-01-01, accessed on 1 December 2022).

Sample	Batch	Fe (µg g−1)	As (µg g−1)	Cd (µg g−1)	Hg (µg g−1)	Pb (µg g−1)
1	A	62.359 ± 16.989	<0.05	<0.05	<0.01	<0.05
2		19.664 ± 2.545	<0.05	<0.05	<0.01	<0.05
3		8.238 ± 1.501	<0.05	<0.05	<0.01	<0.05
4	B	26.865 ± 3.983	<0.05	<0.05	<0.01	<0.05
5		23.636 ± 3.505	<0.05	<0.05	<0.01	<0.05
6		104.018 ± 15.424	<0.05	<0.05	0.046 ± 0.005	<0.05
7	C	8.860 ± 1.314	<0.05	0.072 ± 0.012	<0.01	0.131 ± 0.011
8		62.295 ± 9.237	<0.05	<0.05	<0.01	<0.05
9		110.803 ± 16.429	<0.05	0.302 ± 0.020	0.026 ± 0.002	0.071 ± 0.025
10	D	2.912 ± 0.432	<0.05	<0.05	<0.01	<0.05
11		6.688 ± 0.992	<0.05	<0.05	<0.01	<0.05
12		2.041 ± 0.303	<0.05	<0.05	<0.01	<0.05
13	E	7.511 ± 1.114	<0.05	<0.05	<0.01	<0.05
14		4.720 ± 0.700	<0.05	0.086 ± 0.006	<0.01	0.059 ± 0.011
15		6.116 ± 0.907	<0.05	0.238 ± 0.010	0.035 ± 0.010	0.123 ± 0.013
16	F	15.026 ± 2.228	<0.05	<0.05	<0.01	<0.05
17		27.286 ± 4.046	<0.05	<0.05	<0.01	<0.05
18		13.341 ± 1.978	<0.05	<0.05	<0.01	<0.05
19	G	55.001 ± 1.928	<0.05	<0.05	<0.01	<0.05