| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Cucurbita pepo | Seed | 17960.0 | 39220.0 | 4.1 | * |
| Cucurbita foetidissima | Seed | 14735.0 | 27700.0 | 2.4 | * |
| Ceratonia siliqua | Seed | -- | 24910.0 | 2.0 | Duke, J. A. Writeups or information summaries on approximately 2,000 economic plants, USDA, ARS, Beltsville, MD 20705. |
| Moringa oleifera | Shoot | 5170.0 | 24225.0 | 1.0 | USDA's Ag Handbook 8 and sequelae) |
| Nasturtium officinale | Herb | 1120.0 | 22400.0 | 1.0 | USDA's Ag Handbook 8 and sequelae) |
| Nigella sativa | Seed | 8840.0 | 20700.0 | 1.4 | * |
| Sesamum indicum | Seed | 5890.0 | 19918.0 | 1.3 | * |
| Arachis hypogaea | Seed | 15760.0 | 18993.0 | 1.2 | * |
| Glycine max | Seed | 16870.0 | 18445.0 | 1.1 | USDA's Ag Handbook 8 and sequelae) |
| Corchorus olitorius | Leaf | 2140.0 | 17420.0 | 1.9 | * |
| Allium schoenoprasum | Leaf | 1390.0 | 17375.0 | 1.8 | USDA's Ag Handbook 8 and sequelae) |
| Lupinus albus | Seed | 15390.0 | 17185.0 | 0.9 | * |
| Spinacia oleracea | Plant | 1340.0 | 15914.0 | 1.7 | USDA's Ag Handbook 8 and sequelae) |
| Amaranthus sp. | Leaf | 1320.0 | 15880.0 | 1.5 | * |
| Chenopodium album | Leaf | 2490.0 | 15861.0 | 1.4 | * |
| Juglans cinerea | Seed | 15080.0 | 15601.0 | 0.7 | * |
| Phaseolus vulgaris | Sprout Seedling | 1440.0 | 15484.0 | 1.3 | USDA's Ag Handbook 8 and sequelae) |
| Helianthus annuus | Seed | 14610.0 | 15400.0 | 0.6 | USDA's Ag Handbook 8 and sequelae) |
| Mucuna pruriens | Seed | 7200.0 | 15265.0 | 0.6 | * |
| Pinus pinea | Seed | 12230.0 | 15000.0 | 0.6 | * |