| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Acacia farnesiana | Plant | -- | -- | * | |
| Acacia farnesiana | Flower | -- | -- | * | |
| Achillea millefolium | Plant | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Acorus calamus | Plant | -- | -- | * | |
| Actaea racemosa | Plant | -- | -- | * | |
| Althaea officinalis | Plant | -- | -- | Pakistan Encyclopedia Planta Medica. 1986. | |
| Anamirta cocculus | Fruit | -- | -- | * | |
| Arctium lappa | Plant | -- | -- | * | |
| Artemisia dracunculus | Plant | -- | -- | * | |
| Artemisia capillaris | Essential Oil | -- | -- | * | |
| Asimina triloba | Fruit | -- | 0.001 | * | |
| Camellia sinensis | Plant | -- | -- | * | |
| Capsicum frutescens | Resin, Exudate, Sap | -- | -- | * | |
| Ceratonia siliqua | Fruit | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Chenopodium ambrosioides | Plant | -- | -- | * | |
| Cimicifuga racemosa | Plant | -- | -- | * | |
| Citrus sinensis | Fruit | -- | -- | * | |
| Croton tiglium | Seed | -- | -- | * | |
| Cucumis sativus | Seed | 1200.0 | 1700.0 | 1.0 | * |
| Daucus carota | Root | -- | -- | * |