| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Rosmarinus officinalis | Plant | 1530.0 | 4745.0 | -1.2 | USDA's Ag Handbook 8 and sequelae) |
| Sambucus canadensis | Fruit | 470.0 | 2326.0 | -0.5 | USDA's Ag Handbook 8 and sequelae) |
| Scutellaria baicalensis | Root | -- | -- | * | |
| Secale cereale | Seed | 8130.0 | 9130.0 | -0.7 | USDA's Ag Handbook 8 and sequelae) |
| Sechium edule | Fruit | 380.0 | 5430.0 | 0.3 | * |
| Senna obtusifolia | Seed | -- | 10200.0 | -0.6 | * |
| Sesamum indicum | Seed | 15800.0 | 39000.0 | 0.6 | * |
| Sinapis alba | Seed | 17500.0 | 18725.0 | -0.3 | * |
| Solanum melongena | Fruit | 610.0 | 7559.0 | 0.9 | * |
| Solanum tuberosum | Tuber | 950.0 | 6850.0 | -0.9 | * |
| Spinacia oleracea | Leaf | -- | -- | * | |
| Spinacia oleracea | Plant | 1620.0 | 19239.0 | 1.3 | USDA's Ag Handbook 8 and sequelae) |
| Stachys officinalis | Shoot | -- | -- | * | |
| Terminalia chebula | Fruit | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Theobroma cacao | Seed | -- | 800.0 | -1.0 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Trifolium pratense | Plant | -- | -- | * | |
| Trigonella foenum-graecum | Seed | 22230.0 | 27115.0 | 0.1 | * |
| Trigonella foenum-graecum | Leaf | -- | -- | * | |
| Triticum aestivum | Seed | 4000.0 | 12000.0 | -0.5 | * |
| Urtica dioica | Plant | -- | -- | * |