| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Morus alba | Wood | 3000.0 | 4400.0 | * | |
| Maclura pomifera | Bark | -- | 1000.0 | * | |
| Maclura pomifera | Heart Wood | -- | 500.0 | * | |
| Maclura pomifera | Wood | -- | -- | * | |
| Artocarpus heterophyllus | Plant | -- | -- | * | |
| Maclura pomifera | Tissue Culture | -- | -- | * |