| Acronym | Meaning |
| BDOC | Biodegradable Dissolved Organic Carbon |
| AOB | Analytical Operations Branch (OSWER) |
| USRA | Universities Space Research Association |
| CRT | Continuously Regeneration Trap |
| ERBE | Earth Radiation Budget Experiment |
| LLOD | Lower Limit Of Detection |
| SETS | Superfund Enforcement Tracking System |
| LOESS | Locally Weighted Smoothers [in Modeling] |
| PMF | Proton Motive Force |
| ECNIMS | Electron Capture Negative Ionization Mass Spectrometry |