| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Artocarpus heterophyllus | Fruit | 200.0 | 1735.0 | -0.5 | * |
| Artocarpus altilis | Seed | 110.0 | 825.0 | -0.6 | * |
| Arundo donax | Plant | -- | 4900.0 | -0.9 | * |
| Asiasarum sieboldii | Root | 7450.0 | 12900.0 | 0.6 | * |
| Asiasarum heterotropoides | Root | 7450.0 | 12900.0 | 0.6 | * |
| Asimina triloba | Fruit | 530.0 | 3248.0 | -0.1 | * |
| Aspalathus linearis | Leaf | -- | -- | * | |
| Aspalathus linearis | Shoot | -- | 2000.0 | -0.9 | * |
| Aspalathus linearis | Plant | -- | 90.0 | -1.4 | * |
| Asparagus officinalis | Shoot | 160.0 | 3840.0 | -0.8 | * |
| Asparagus officinalis | Root | 265.0 | 2650.0 | -0.5 | * |
| Asparagus lucidus | Root | -- | 1810.0 | -0.6 | * |
| Astragalus membranaceus | Root | 560.0 | 3500.0 | -0.4 | * |
| Atractylodes ovata | Rhizome | 5800.0 | 11600.0 | 1.0 | * |
| Atractylodes lancea | Rhizome | -- | 11300.0 | 1.0 | * |
| Avena sativa | Seed | 400.0 | 4800.0 | 0.1 | * |
| Avena sativa | Plant | 3146.0 | 14300.0 | 0.1 | * |
| Averrhoa carambola | Fruit | 29.0 | 1040.0 | -0.6 | * |
| Averrhoa bilimbi | Fruit | 30.0 | 665.0 | -0.7 | * |
| Azadirachta indica | Leaf | 16700.0 | 26500.0 | 0.6 | * |