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Modeling Subsurface Petroleum Hydrocarbon Transport
Bulk density, rb = total mass of a dry sample per unit volume
Concentration, C = mass of contaminant per unit volume (or mass per unit mass)
| Cw | Water phase concentration (mass of chemical per unit volume of water) | |
| Co | Oil or NAPL phase concentration (mass of chemical per unit volume of oil or NAPL) | |
| Ca | Air phase concentration (mass of chemical per unit volume of air) | |
| Cs | Solid phase concentration (mass of chemical per unit MASS of solid) |
Porosity, n = void volume per unit total volume
Saturation, S = fraction of the pore space filled by a given fluid
| Sw | water saturation |
| So | oil or NAPL saturation |
| Sa | air saturation |
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