| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Equisetum hyemale | Plant | -- | -- | * | |
| Equisetum arvense | Plant | -- | -- | * | |
| Eucalyptus citriodora | Leaf | -- | -- | * | |
| Eucalyptus globulus | Leaf | -- | -- | Leung, A.Y., Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, John Wiley & Sons, New York, 1980. | |
| Euphorbia hirta | Leaf | -- | -- | * | |
| Euphorbia lathyris | Leaf | -- | -- | * | |
| Euphrasia officinalis | Plant | -- | -- | Tyler, V.E.. 1982. The Honest Herbal. George F. Stickley Co., Philadelphia PA. 263 pp. | |
| Ferula assa-foetida | Gum | -- | -- | * | |
| Ferula assa-foetida | Essential Oil | -- | -- | * | |
| Ferula assa-foetida | Resin, Exudate, Sap | -- | 13000.0 | * | |
| Ficus carica | Plant | -- | -- | * | |
| Foeniculum vulgare | Seed | -- | 0.5 | -0.4 | * |
| Foeniculum vulgare | Fruit | -- | -- | * | |
| Gaultheria procumbens | Leaf | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Glechoma hederacea | Plant | -- | -- | * | |
| Glycine max | Shoot | -- | -- | * | |
| Glycine max | Seed | 1.0 | 4.0 | -0.4 | * |
| Glycine max | Plant | 1.0 | 4.0 | -1.4 | * |
| Glycyrrhiza glabra | Plant | -- | -- | * | |
| Helianthus annuus | Pollen Or Spore | 2.0 | 3.0 | * |