| Acronym | Meaning |
| ECU | Electronic Control Unit |
| OVGF | Outer-valence Green Function (for Ionization-energy Calcns.) |
| VGO | Virgin Gas Oil |
| SPIO | Superparamagnetic Iron Oxide |
| PPFD | Photosynthetic Photon Flux D. |
| CHRIS | Chemical Hazards Response Info System |
| WFA | Window Factor Analysis |
| FSR | Free Spectral Range |
| RNA | Remediation By Natural Attenuation |
| TNS | 6-p-Toluidino-2-naphthalenesulfonic Acid |