| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Secale cereale | Seed | 3670.0 | 4120.0 | -0.5 | USDA's Ag Handbook 8 and sequelae) |
| Sechium edule | Fruit | 160.0 | 2285.0 | 0.4 | * |
| Sesamum indicum | Seed | 3050.0 | 7112.0 | 0.3 | * |
| Sinapis alba | Seed | 7620.0 | 8153.0 | 0.5 | * |
| Solanum melongena | Fruit | 240.0 | 3098.0 | 1.0 | * |
| Solanum tuberosum | Tuber | 450.0 | 2140.0 | -0.8 | USDA's Ag Handbook 8 and sequelae) |
| Spinacia oleracea | Plant | 640.0 | 7601.0 | 1.1 | USDA's Ag Handbook 8 and sequelae) |
| Stachys officinalis | Shoot | -- | -- | * | |
| Theobroma cacao | Seed | -- | 800.0 | -1.4 | 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 | 4850.0 | 7350.0 | 0.3 | * |
| Triticum aestivum | Seed | 1000.0 | 6000.0 | -0.0 | * |
| Urtica dioica | Leaf | -- | -- | Jim Duke's personal files. | |
| Vaccinium corymbosum | Fruit | 100.0 | 715.0 | -0.7 | * |
| Valerianella locusta | Plant | 360.0 | 5000.0 | 0.2 | * |
| Vicia faba | Seed | 1340.0 | 7050.0 | 0.2 | USDA's Ag Handbook 8 and sequelae) |
| Vigna unguiculata | Seed | 950.0 | 8290.0 | 0.6 | USDA's Ag Handbook 8 and sequelae) |
| Vigna unguiculata | Fruit | 900.0 | 7407.0 | 4.0 | USDA's Ag Handbook 8 and sequelae) |
| Vigna angularis | Seed | 5240.0 | 6054.0 | -0.0 | * |
| Vigna radiata | Sprout Seedling | 700.0 | 7353.0 | -1.0 | USDA's Ag Handbook 8 and sequelae) |