| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Diospyros virginiana | Stem | 1.5 | 37.8 | 1.4 | * |
| Lycopersicon esculentum | Fruit | 2.0 | 30.0 | * | |
| Rhus copallina | Leaf | 1.8 | 28.8 | 1.7 | * |
| Liquidambar styraciflua | Stem | 1.4 | 24.0 | -0.3 | * |
| Prunus serotina | Leaf | 2.0 | 19.0 | -0.1 | * |
| Rhus copallina | Stem | 1.7 | 18.0 | -1.0 | * |
| Liquidambar styraciflua | Leaf | 2.8 | 16.4 | -0.6 | * |
| Diospyros virginiana | Leaf | 3.5 | 15.0 | -0.9 | * |
| Carya ovata | Shoot | -- | 13.5 | * |