| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Pastinaca sativa | Root Essent. Oil | 253000.0 | 666000.0 | 1.4 | * |
| Melaleuca alternifolia | Essential Oil | -- | 429000.0 | 2.8 | * |
| Petroselinum crispum | Fruit Essent. Oil | 10000.0 | 50500.0 | 1.4 | * |
| Apium graveolens | Root Essent. Oil | -- | 33000.0 | -0.7 | * |
| Melaleuca alternifolia | Leaf Essent. Oil | -- | 33000.0 | 2.4 | * |
| Myristica fragrans | Seed Essent. Oil | 14000.0 | 26000.0 | 1.7 | * |
| Pinus sylvestris | Leaf Essent. Oil | -- | 26000.0 | 1.7 | * |
| Origanum majorana | Essential Oil | -- | 20000.0 | -0.2 | * |
| Melaleuca alternifolia | Root Essent. Oil | -- | 19200.0 | -0.7 | * |
| Myristica fragrans | Essential Oil | 10000.0 | 17000.0 | -0.3 | * |
| Valeriana officinalis | Leaf Essent. Oil | 3100.0 | 9200.0 | 0.1 | * |
| Melaleuca alternifolia | Leaf | 236.0 | 6125.0 | 7.6 | * |
| Origanum vulgare | Shoot Essent. Oil | -- | 5500.0 | 1.0 | * |
| Coriandrum sativum | Seed Essent. Oil | -- | 5300.0 | -0.3 | * |
| Eucalyptus globulus | Leaf Essent. Oil | 1000.0 | 5000.0 | -0.3 | * |
| Mentha pulegium | Essential Oil | 100.0 | 4500.0 | -0.4 | * |
| Eucalyptus citriodora | Leaf Essent. Oil | -- | 3000.0 | -0.5 | * |
| Eucalyptus grandis | Leaf Essent. Oil | -- | 3000.0 | -0.5 | * |
| Rosmarinus officinalis | Leaf Essent. Oil | -- | 3000.0 | -0.5 | * |
| Myristica fragrans | Seed | 340.0 | 2720.0 | 1.7 | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. |