| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Ribes nigrum | Fruit | 2.0 | 21.0 | -0.3 | * |
| Quercus phellos | Stem | 2.0 | 92.0 | -0.4 | * |
| Nyssa sylvatica | Leaf | 2.0 | 55.0 | -0.2 | * |
| Rumex acetosa | Leaf | 2.0 | 20.0 | -0.4 | * |
| Allium cepa | Bulb | 2.0 | 53.0 | 1.4 | * |
| Brassica rapa | Root | 2.0 | 23.0 | -0.1 | * |
| Ribes rubrum | Fruit | 2.0 | 16.0 | -0.4 | * |
| Dioscorea alata | Root | 2.0 | 17.0 | -0.3 | * |
| Phaseolus vulgaris | Fruit | 2.0 | 150.0 | 3.6 | * |
| Raphanus sativus | Root | 2.0 | 72.0 | 2.1 | * |
| Psidium guajava | Fruit | 2.0 | 20.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Santalum acuminatum | Fruit | 2.0 | 9.0 | -0.6 | * |
| Ipomoea batatas | Root | 2.0 | 11.0 | -0.6 | * |
| Capsicum annuum | Fruit | 2.0 | 7.7 | -0.7 | * |
| Brassica oleracea var. capitata l. | Leaf | 2.0 | 41.0 | -0.3 | * |
| Daucus carota | Root | 2.0 | 79.0 | 2.4 | * |
| Symphoricarpos orbiculatus | Stem | 2.0 | 92.0 | -0.4 | * |
| Cucumis sativus | Fruit | 2.0 | 157.0 | 3.8 | * |
| Solanum tuberosum | Tuber | 1.9 | 44.1 | 0.8 | * |
| Vaccinium vitis-idaea | Fruit | 1.7 | 14.0 | -0.5 | * |