| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Corchorus olitorius | Leaf | -- | -- | * | |
| Camellia sinensis | Tissue Culture | -- | -- | * | |
| Daucus carota | Root | -- | -- | * | |
| Sorbus aucubaria | Fruit | -- | -- | * | |
| Ricinus communis | Plant | -- | -- | Rizk, A.F.M. and Al-Nowaihi, A.S., The Phytochemistry of the Horticultural Plants of Qatar, Scientific and Applied Research Centre, University of Qatar. | |
| Anethum graveolens | Fruit | -- | -- | * | |
| Centaurea cyanus | Flower | -- | -- | Jim Duke's personal files. | |
| Harpagophytum procumbens | Root | -- | -- | * | |
| Centaurea cyanus | Shoot | -- | -- | Jim Duke's personal files. | |
| Zingiber officinale | Plant | -- | -- | Stitt, Paul. Why George should eat broccoli. | |
| Solanum melongena | Fruit | -- | -- | * | |
| Morus alba | Leaf | -- | -- | * | |
| Calendula officinalis | Flower | -- | -- | * | |
| Trifolium pratense | Plant | -- | -- | J.S. Glasby Dict.Pls Containing 2ndary Metabolite. 1991. | |
| Althaea officinalis | Flower | -- | -- | * | |
| Spinacia oleracea | Shoot | -- | -- | * | |
| Tanacetum vulgare | Plant | -- | -- | * | |
| Harpagophytum procumbens | Tuber | -- | -- | * | |
| Conium maculatum | Plant | -- | -- | * | |
| Glycine max | Shoot | -- | -- | * |