|
|
| Cu | Ni | Pb | Refs. |
| Recommended limits | SASO | - | - | 10 μg∙g−1 | [14] |
| FDA | - | - | 20 μg∙g−1 | [7] | |
| Health Canada | - | - | 10 μg∙g−1 | [7] | |
| Toxicities |
| Liver damage, insomnia, Wilson disease | dermatitis, nausea, chronic asthma, coughing, a human carcinogen | fetal brain damage, kidney disease, circulatory system, nervous system, and autoimmunity problems | [15] |