| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Cucumis sativus | Seed | -- | -- | * | |
| Helianthus annuus | Seed | -- | -- | 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. | |
| Citrullus lanatus | Seed | -- | -- | * | |
| Camellia sinensis | Seed | -- | -- | * | |
| Cucurbita pepo | Seed | -- | -- | * | |
| Cucumis melo | Seed | -- | -- | * | |
| Ganoderma lucidum | Fruit | -- | -- | * |