| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Apium graveolens | Root | 340.0 | 3635.0 | -0.4 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Arachis hypogaea | Leaf | 2620.0 | 21500.0 | 0.2 | * |
| Arachis hypogaea | Seed | 560.0 | 969.0 | -0.6 | * |
| Arachis hypogaea | Plant | 9300.0 | 31500.0 | 1.9 | * |
| Aralia cordata | Leaf | 130.0 | 2765.0 | -1.1 | * |
| Arctium lappa | Root | 1723.0 | 7330.0 | -0.0 | * |
| Arctostaphylos uva-ursi | Leaf | 1264.0 | 10900.0 | -0.5 | * |
| Areca catechu | Seed | 500.0 | 1050.0 | -0.6 | * |
| Areca catechu | Sprout Seedling | -- | 60.0 | -0.7 | * |
| Arisaema consanguineum | Rhizome | -- | 1550.0 | -1.2 | * |
| Aristolochia debilis | Fruit | -- | 1740.0 | -0.5 | * |
| Armoracia rusticana | Root | 1800.0 | 10000.0 | 0.3 | * |
| Arracacia xanthorrhiza | Root | 190.0 | 655.0 | -0.7 | * |
| Artemisia vulgaris | Plant | 8000.0 | 11000.0 | -0.3 | Chem. & Pharm. Bull. 38: 2205. |
| Artemisia capillaris | Plant | -- | 15200.0 | 0.2 | * |
| Artemisia vulgaris | Leaf | 820.0 | 6455.0 | -0.8 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Artemisia vulgaris | Shoot | -- | 8600.0 | -0.4 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Artemisia dracunculus | Plant | 11390.0 | 12340.0 | -0.1 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Artocarpus altilis | Seed | 110.0 | 825.0 | -0.6 | * |
| Artocarpus heterophyllus | Seed | 500.0 | 1033.0 | -0.6 | * |