| Acronym | Meaning |
| GWPS | Groundwater Protection Strategy |
| UAM-IV | Urban Airshed Model Version IV |
| CBF | Cerebral Blood Flow |
| REM | Reflection Electron Microscopy |
| QSO | Quasistellar Objects |
| NIRMS | Noble Gas-ion Reflection Mass Spectrometry |
| NEM | NAAQS Exposure Model |
| XEAES | X-ray Excited Auger Electron Spectroscopy |
| MBSS | Molecular Beam Surface Scattering |
| MADCAP | Model Of Advection |