| Acronym | Meaning |
| TPH | Total Petroleum Hydrocarbons |
| QMMM | Quantum Mechanics-molecular Mechanics ~ |
| FSC | Fluorescent Solar Concentrator |
| DTGS | Deuterated Triglycine Sulfate |
| IUGS | International Union Of Geological Sciences |
| IRIS | Integrated Risk Information System |
| SCOP | Structural Classification Of Proteins |
| CHEC | Commonwealth Human Ecology Council |
| MVEL | Motor Vehicle Emission Laboratory |
| NAWDEX | National Water Data Exchange |