| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Solanum tuberosum | Tuber | -- | 675.0 | * | |
| Prunus cerasus | Fruit | -- | -- | * | |
| Vitis vinifera | Fruit | -- | -- | Jim Duke's personal files. | |
| Marrubium vulgare | Plant | -- | -- | * | |
| Prunus domestica | Fruit | -- | -- | Jim Duke's personal files. | |
| Cynara cardunculus | Leaf | -- | -- | * |