| Acronym | Meaning |
| FLN | Fluorescence Line Narrowing |
| ISAST | Irreversible Sorption Affected Solute Transport [model] |
| ATMOS | Atmospheric Trace Molecule Spectroscopy |
| PCFA | Principal Component Factor Analysis |
| PMN | Premanufacture Notice |
| INEL | Idaho National Engineering Lab. |
| IRF | Instrument Response Function |
| MEI | Maximally Exposed Individual |
| DERP | Defense Environmental Restoration Program |
| ECC | Electrokinetic Capillary Chromatography |