| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Ceratonia siliqua | Seed | -- | 131600.0 | 3.8 | Duke, J. A. Writeups or information summaries on approximately 2,000 economic plants, USDA, ARS, Beltsville, MD 20705. |
| Rehmannia glutinosa | Root | 2000.0 | 53000.0 | 3.2 | * |
| Lycopersicon esculentum | Fruit | 90.0 | 54053.0 | 3.2 | * |
| Cucurbita pepo | Seed | 43150.0 | 101820.0 | 2.5 | * |
| Pisum sativum | Fruit | 4480.0 | 44313.0 | 2.4 | * |
| Lupinus albus | Seed | 21650.0 | 96985.0 | 2.3 | * |
| Brassica chinensis | Leaf | 3600.0 | 76932.0 | 2.1 | * |
| Brassica rapa | Leaf | 3600.0 | 76932.0 | 2.1 | USDA's Ag Handbook 8 and sequelae) |
| Cucumis sativus | Fruit | 1540.0 | 38987.0 | 2.0 | * |
| Allium schoenoprasum | Leaf | 5790.0 | 72400.0 | 1.9 | USDA's Ag Handbook 8 and sequelae) |
| Cucurbita pepo | Fruit | 1840.0 | 35000.0 | 1.7 | * |
| Spinacia oleracea | Plant | 3430.0 | 40735.0 | 1.6 | USDA's Ag Handbook 8 and sequelae) |
| Glycine max | Seed | 70680.0 | 77280.0 | 1.5 | USDA's Ag Handbook 8 and sequelae) |
| Foeniculum vulgare | Fruit | 29560.0 | 32427.0 | 1.5 | * |
| Cucurbita foetidissima | Seed | 52800.0 | 73530.0 | 1.3 | * |
| Beta vulgaris | Root | 3930.0 | 30994.0 | 1.3 | USDA's Ag Handbook 8 and sequelae) |
| Cnidoscolus chayamansa | Leaf | 11780.0 | 58900.0 | 1.1 | * |
| Phaseolus vulgaris | Sprout Seedling | 5120.0 | 55054.0 | 1.1 | USDA's Ag Handbook 8 and sequelae) |
| Abelmoschus esculentus | Fruit | 2710.0 | 27100.0 | 1.1 | USDA's Ag Handbook 8 and sequelae) |
| Zingiber officinale | Rhizome | 1620.0 | 9328.0 | 1.0 | * |