| Acronym | Meaning |
| AS | Air Stripping |
| CORMIX | Cornell Mixing Zone Model |
| APLR | Annual Pollutant Loading Rate |
| UCHFPT | Uncoupled Hartree-Fock Perturbation Theory |
| EHP | Electron-hole Potential Method |
| IOSVR | Infinite Order Sudden Vib-rotor Approximation |
| CAP | Continuous Absorption Process |
| PVR | Pulmonary Vascular Resistance |
| NTB | Nonorthogonal Tight-binding |
| EBPR | Enhanced Biol. Phosphorus Removal |