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Maximum tolerance limits set by the Clean Label Project for heavy metal analytes.
| Analyte | Maximum tolerance limit (μg/day) | Source/inspiration |
|---|---|---|
| Arsenic | 0.06 (inhalation) 10 (non-inhalation) | EPA arsenic in drinking water standard |
| Lead | 0.5 | California proposition 65 |
| Mercury | 0.3 | California proposition 65 |
| Cadmium | 0.05 (inhalation) 4.1 (non-inhalation) | California proposition 65 |
EPA, Environmental Protection Agency.
