| Acronym | Meaning |
| TST | Transition State Theory |
| XEAES | X-ray Excited Auger Electron Spectroscopy |
| STA | Simultaneous Thermal Analysis |
| ZDDP | Zinc Dialkyl Dithiophosphate |
| RASA | Regional Aquifer Systems Analysis (program Of USGS) |
| GLP | Great Lakes Precipitation |
| IRZ | Immediate Response Zone |
| DPSV | Differential Pulse Stripping Voltammetry |
| OVMO | Occupied Valence-type Mol. Orbital |
| GEIA | Global Emissions Inventory Assessment |