| Acronym | Meaning |
| SPIN | Silica Phase-immobilized Nitroxide |
| IUE | International Ultraviolet Explorer |
| ANPP | Aboveground Net Primary Production |
| BAAQMD | Bay Area Air Quality Management District |
| BKW | Bobylev-Krook-Wu (method For Solving The Boltzmann Equation For A Mol. System) |
| SIMAAC | Simultaneous Multi-element Analysis With A Continuum Source |
| NSS | National Stream Survey (USA) |
| CBOD | Carbonaceous Biochemical Oxygen Demand |
| UCS | Unconfined Compressive Strength |
| ICAPES | Inductively Coupled Argon Plasma Emission Spectrometry |