Wood preservation facilities, inorganic boron: chapter I, table 24
Table 24. Typical Background Levels of Boron
| Typical concentration in non-polluted environments | ||
| Element | Surface waters (mg/L) (11) | Soils (19) |
| Boron (B) | 0.0001-2.58 Typical boron concentrations are less than 0.1 mg/L |
2-100 mg/kg |