| Acronym | Meaning |
| NPL | National Priorities List |
| NREP | National Registry Of Environmental Professionals |
| PIET | Photoinduced Intramolecular Electron Transfer |
| CPF | Carcinogenic Potency Factor |
| IRAK | Interleukin 1 Receptor-associated Kinase |
| ECE | Electrical Conductivity Of Saturation Extract (soils) |
| SIRS | Systemic Inflammatory Response Syndrome |
| GOME | Global Ozone Monitoring Experiment |
| CPI | Chemical Patents Index |
| R2PI | Resonant Two-photon Ionization |