| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Abelmoschus esculentus | Seed | 43920.0 | 100190.0 | -0.2 | * |
| Abelmoschus moschatus | Seed | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Abrus precatorius | Seed | -- | 12125.0 | -0.9 | Wealth of India. |
| Abutilon theophrasti | Seed | -- | 22645.0 | -0.8 | Wealth of India. |
| Acacia nilotica | Plant | -- | -- | * | |
| Acacia farnesiana | Seed | 4200.0 | 16000.0 | -0.8 | * |
| Achillea millefolium | Plant | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Acrocomia totai | Fruit | -- | 223520.0 | 1.2 | * |
| Actaea racemosa | Plant | -- | -- | Newall, C. A., Anderson, L. A. and Phillipson, J. D. 1996. Herbal Medicine - A Guide for Health-care Professionals. The Pharmaceutical Press, London. 296pp. | |
| Aesculus hippocastanum | Seed | -- | 18990.0 | -0.8 | * |
| Ageratum conyzoides | Seed | -- | 18075.0 | -0.8 | Wealth of India. |
| Akebia quinata | Seed | -- | -- | * | |
| Aleurites moluccana | Seed | 59850.0 | 365580.0 | 2.0 | * |
| Aleurites fordii | Seed | 45000.0 | 90000.0 | -0.2 | * |
| Alisma plantago-aquatica | Plant | -- | -- | * | |
| Alliaria petiolata | Plant | -- | 15400.0 | 2.3 | * |
| Allium cepa | Seed | -- | 46800.0 | -0.6 | Wealth of India. |
| Allium cepa | Seed Oil | 260000.0 | 292900.0 | -0.1 | * |
| Allium schoenoprasum | Leaf | 840.0 | 10500.0 | 0.8 | USDA's Ag Handbook 8 and sequelae) |
| Allium cepa | Bulb | 230.0 | 2230.0 | 1.0 | * |