| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Pastinaca sativa | Root | 5.0 | 70.0 | 2.0 | * |
| Quercus velutina | Stem | 5.0 | 93.0 | -0.3 | * |
| Brassica oleracea var. italica | Leaf | 4.0 | 118.0 | 0.2 | * |
| Cinnamomum aromaticum | Bark | 4.0 | 10.0 | -0.3 | * |
| Persea americana | Fruit | 4.0 | 16.0 | -0.4 | * |
| Artocarpus heterophyllus | Fruit | 4.0 | 16.0 | -0.4 | * |
| Chamissoa altissima | Leaf | 4.0 | 36.0 | -0.3 | Tramil |
| Brassica oleracea var. sabellica l. | Leaf | 4.0 | 28.0 | -0.4 | * |
| Zea mays | Seed | 4.0 | 20.0 | -0.7 | * |
| Manihot esculenta | Root | 4.0 | 19.0 | -0.2 | * |
| Sassafras albidum | Stem | 4.0 | 111.0 | -0.1 | * |
| Carya glabra | Shoot | 4.0 | 1100.0 | 2.3 | * |
| Quercus rubra | Stem | 4.0 | 138.0 | 0.3 | * |
| Brassica oleracea var. botrytis l. | Leaf | 4.0 | 118.0 | 0.2 | * |
| Quercus stellata | Stem | 4.0 | 52.0 | -1.0 | * |
| Spinacia oleracea | Plant | 4.0 | 185.0 | 1.3 | * |
| Cynara cardunculus | Flower | 4.0 | 36.0 | 0.1 | USDA's Ag Handbook 8 and sequelae) |
| Liquidambar styraciflua | Stem | 4.0 | 240.0 | 1.8 | * |
| Castanea sativa | Seed | 4.0 | 10.0 | -1.0 | * |
| Rubus idaeus | Fruit | 4.0 | 37.0 | 0.2 | Revised USDA data received 1993. |