| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Pinus sylvestris | Shoot | -- | -- | * | |
| Pinus strobus | Bark | -- | -- | Phenolic Compounds in Food and Their Effects on Health. Antioxidants & Cancer Prevention. Huang, M.T., Ho, C.T. and Lee, C.Y. eds. 1992. ACS Symposium Series 507.ACS, Washington 402 pp. | |
| Pinus sylvestris | Wood | -- | -- | * | |
| Pinus mugo | Wood | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Pinus sylvestris | Wood | 2500.0 | 8000.0 | * |