| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Musa x paradisiaca | Fruit | 2.5 | 20.0 | 0.1 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Pastinaca sativa | Root | 0.6 | 10.0 | -0.4 | * |
| Petasites japonicus | Plant | 18.0 | 26.0 | 0.2 | Chem. & Pharm. Bull. 38: 2205. |
| Petroselinum crispum | Leaf | 2.2 | 65.0 | 0.9 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Peucedanum decursivum | Plant | 16.0 | 18.0 | -0.5 | * |
| Phaseolus vulgaris | Fruit | 0.47 | 7.0 | -0.9 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Pistacia vera | Seed | -- | 10.0 | -0.5 | * |
| Pisum sativum | Seed | 0.77 | 10.0 | -0.5 | * |
| Polystichum polyblepharum | Plant | 10.0 | 13.0 | -0.9 | * |
| Prunus dulcis | Seed | 5.0 | 13.0 | -0.3 | * |
| Prunus domestica | Fruit | 0.5 | 15.0 | -0.3 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Pyrus communis | Fruit | 1.6 | 20.0 | 0.1 | * |
| Quercus rubra | Stem | 3.7 | 26.0 | -0.4 | * |
| Quercus rubra | Seed | -- | 5.0 | -0.9 | * |
| Quercus velutina | Stem | 3.7 | 21.0 | -1.0 | * |
| Quercus alba | Stem | 3.7 | 40.0 | 1.4 | * |
| Raphanus sativus | Root | 0.44 | 15.7 | 0.4 | * |
| Rheum rhabarbarum | Pt | 1.1 | 58.0 | * | |
| Ribes rubrum | Fruit | 0.9 | 23.0 | 0.3 | * |
| Ribes nigrum | Fruit | 1.0 | 28.0 | 0.7 | ACTA AGRIC SCAND SUPPL 22: 1980 |