| Acronym | Meaning |
| IBMS | Ion Beam Mass Spectrometry |
| NPOESS | National Polar Orbiting Environmental Satellite System |
| RIS | Resonance Ionization Spectrometry |
| ISPAC | International Society For Polycyclic Aromatic Compounds |
| CCL | Drinking Water Contaminant Candidate List |
| RFD | Reference Dose |
| ECIST | Estimated Chronic In Stream Toxicity |
| FEPCA | Federal Environmental Pesticide Control Act |
| MSWV | Multiple Square Wave Voltammetry |
| MGA | Modified Glauber Approxn. (in Atom-particle Scattering) |