Table 3.
The content of arsenic, cadmium, lead, and mercury in 0.25 and 1 g of boiled, dried S. latissima and the tolerable amounts of the PTEs. The tolerable daily and weekly intakes (TDI, TWI) for the PTEs are provided by EFSA [35,36,37,38].
| Element | Chemical Form | Content | Tolerable Amounts | TDI (%): 1 g kelp/70 kg bw | ||||
|---|---|---|---|---|---|---|---|---|
| μg/kg bw | μg/70 kg | |||||||
| μg/g | μg/0.25 g | TWI | TDI | TWI | TDI | |||
| Cd | Total | 2.19 | 0.55 | 2.5 | 0.4 | 175 | 25 | 8.7 |
| Hg | Total | 0.03 | 0.01 | - | - | - | - | - |
| MeHg | n.a. | n.a. | 1.3 | 0.2 | 91 | 13 | 0.2 | |
| iHg | n.a. | n.a. | 4 | 0.6 | 280 | 40 | 0.1 | |
| Pb | Total | 1.16 | 0.29 | 3.5 | 0.5 | 245 | 35 | 3.3 |
| As | Total | 36.0 | 9.00 | - | - | - | - | - |
| iAs 1 | 0.63 | 0.16 | 2.1 | 0.3 | 147 | 21 | 3.0 | |
1 iAs was not measured but is based on calculations assuming 1% of total arsenic is inorganic and that no inorganic arsenic was lost during processing. n.a.: not analyzed; -: there are no TDI or TWI for this matrix.