| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Quercus rubra | Stem | 20.0 | 330.0 | -0.4 | * |
| Rhus copallina | Leaf | 13.0 | 288.0 | -0.9 | * |
| Liquidambar styraciflua | Leaf | 8.0 | 246.0 | -1.0 | * |
| Cichorium endivia | Shoot | 140.0 | 240.0 | -0.8 | * |
| Citrus paradisi | Fruit | 3.3 | 220.0 | 2.6 | * |
| Asparagus officinalis | Shoot | 19.0 | 200.0 | -0.9 | * |
| Quercus velutina | Stem | 16.0 | 186.0 | -1.0 | * |
| Allium cepa | Bulb | 57.0 | 162.0 | * | |
| Petasites japonicus | Plant | 36.0 | 160.0 | 0.1 | Chem. & Pharm. Bull. 38: 2205. |
| Daucus carota | Root | 1.0 | 148.0 | 1.0 | * |
| Lycopersicon esculentum | Fruit | -- | 140.0 | 1.2 | * |
| Peucedanum decursivum | Plant | 100.0 | 130.0 | -0.1 | * |
| Quercus phellos | Stem | 14.0 | 126.0 | -1.3 | * |
| Quercus stellata | Stem | 5.0 | 126.0 | -1.3 | * |
| Taraxacum officinale | Plant | 64.0 | 120.0 | -0.2 | Chem. & Pharm. Bull. 38: 2205. |
| Fallopia japonica | Plant | 15.0 | 120.0 | -0.2 | Chem. & Pharm. Bull. 38: 2205. |
| Boehmeria nivea | Plant | 90.0 | 118.0 | -0.2 | * |
| Glechoma hederacea | Plant | 51.0 | 110.0 | -0.3 | Chem. & Pharm. Bull. 38: 2205. |
| Citrus sinensis | Fruit | 0.054 | 110.0 | 0.7 | * |
| Phaseolus vulgaris | Fruit | 2.0 | 105.0 | 0.6 | * |