| Acronym | Meaning |
| GUGA | Graphical Unitary Group Approach |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
| AMS | Accelerator Mass Spectrometry |
| ODPA | 4,4'-oxydiphthalic Anhydride |
| IRA | Interim Response Actions |
| BPC | British Pharmaceutical Codex |
| CLE | Competitive Ligand Exchange |
| BEES | Ballistic Electron Emission Spectroscopy |
| SHM | Stockholm Humic Model |
| PRZM | Pesticide Root Zone Model |