| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Camellia sinensis | Leaf | 3.0 | 17.0 | * | |
| Aesculus hippocastanum | Leaf | -- | -- | * | |
| Apium graveolens | Seed | -- | -- | * | |
| Hordeum vulgare | Tissue Culture | -- | -- | * | |
| Hordeum vulgare | Root | -- | -- | * | |
| Hordeum vulgare | Leaf | -- | -- | * | |
| Pimpinella anisum | Tissue Culture | -- | -- | * | |
| Pimpinella anisum | Root | -- | -- | * | |
| Pimpinella anisum | Leaf | -- | -- | * | |
| Ribes nigrum | Fruit | -- | 10.1 | * |