| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Vigna radiata | Sprout Seedling | 3.5 | 48.0 | 0.5 | USDA's Ag Handbook 8 and sequelae) |
| Genipa americana | Fruit | 3.0 | 14.0 | -0.5 | * |
| Rhus glabra | Stem | 3.0 | 208.0 | 1.4 | * |
| Portulaca oleracea | Shoot | 3.0 | 60.0 | -0.7 | Laferriere, J.E., 1988, Nutricomp Program, Nutricomp Database; reviewed in J. Ethnobiology 9(1):27-29. |
| Ginkgo biloba | Seed | 3.0 | 8.0 | -1.1 | USDA's Ag Handbook 8 and sequelae) |
| Pistacia vera | Seed | 3.0 | 30.0 | -0.4 | * |
| Phoenix dactylifera | Fruit | 3.0 | 4.0 | -0.8 | USDA's Ag Handbook 8 and sequelae) |
| Capsicum frutescens | Fruit | 3.0 | 24.0 | -0.2 | USDA's Ag Handbook 8 and sequelae) |
| Prunus serotina | Leaf | 3.0 | 192.0 | 0.7 | * |
| Elaeagnus umbellatus | Fruit | 3.0 | 20.0 | -0.3 | * |
| Brassica oleracea var. botrytis l. | Flower | 3.0 | 97.0 | 3.1 | * |
| Annona cherimola | Fruit | 3.0 | 15.0 | -0.5 | * |
| Beta vulgaris | Root | 3.0 | 70.0 | 2.0 | * |
| Sambucus nigra | Fruit | 3.0 | 17.0 | -0.4 | * |
| Apium graveolens | Root | 2.8 | 70.0 | 2.0 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Lactuca sativa | Leaf | 2.7 | 974.0 | 5.5 | * |
| Quercus alba | Stem | 2.0 | 182.0 | 1.0 | * |
| Cucurbita spp | Fruit | 2.0 | 41.0 | 0.3 | * |
| Brassica nigra | Leaf | 2.0 | 40.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Prunus armeniaca | Seed | 2.0 | 38.0 | -0.2 | * |