| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Cichorium endivia | Leaf | 4.0 | 4.8 | -0.5 | * |
| Brassica pekinensis | Leaf | 3.8 | 4.2 | -0.5 | * |
| Petroselinum crispum | Plant | 3.8 | 4.0 | 0.4 | * |
| Liquidambar styraciflua | Plant | 2.0 | 5.0 | 1.0 | * |
| Asparagus officinalis | Shoot | 1.8 | 2.4 | -1.0 | * |
| Cucumis melo | Fruit | 1.7 | 2.2 | -0.3 | * |
| Solanum melongena | Fruit | 1.4 | 1.6 | -0.4 | * |
| Capsicum annuum | Fruit | 1.4 | 2.0 | -0.3 | * |
| Brassica oleracea var. capitata l. | Leaf | 1.4 | 203.0 | 2.6 | * |
| Cucumis sativus | Fruit | 1.18 | 2.8 | -0.2 | * |
| Diospyros virginiana | Leaf | 1.0 | 3.5 | -0.6 | * |
| Phaseolus vulgaris | Fruit | 1.0 | 22.0 | 3.4 | * |
| Daucus carota | Root | 1.0 | 2.0 | * | |
| Phaseolus lunatus | Seed | 0.9 | 7.0 | 2.2 | * |
| Juniperus virginiana | Shoot | 0.8 | 8.8 | 1.4 | * |
| Vigna unguiculata | Seed | 0.8 | 2.4 | -0.3 | * |
| Glycine max | Seed | 0.8 | 2.4 | -0.3 | * |
| Vigna unguiculata | Seed | 0.8 | 2.4 | -0.3 | * |
| Symphoricarpos orbiculatus | Stem | 0.8 | 44.0 | 2.4 | * |
| Allium cepa | Bulb | 0.76 | 1.0 | * |