| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Vitis vinifera | Fruit | 180.0 | 926.0 | -0.9 | USDA's Ag Handbook 8 and sequelae) |
| Zea mays | Seed | 1290.0 | 5366.0 | -0.6 | USDA's Ag Handbook 8 and sequelae) |
| Zingiber officinale | Tuber | -- | -- | * | |
| Zingiber officinale | Shoot | -- | -- | * | |
| Zingiber officinale | Rhizome | 360.0 | 2057.0 | -1.0 | * |
| Zingiber officinale | Root | 360.0 | 2057.0 | -0.5 | USDA's Ag Handbook 8 and sequelae) |