| Acronym | Meaning |
| STE | Self-trapped Exciton |
| NSSS | National Sewage Sludge Survey |
| MBRS | Molecular Beam Relaxation Spectrometry |
| LEL | Lower Explosion Limit |
| ECCI | Electron Capture Chemical Ionization |
| SS | Suspended Solids |
| ORAC | Oxygen Radical Absorbance Capacity |
| CINDORU | Cluster INDO Restricted-unrestricted |
| BSBL | Bond Strength-bond Length (model Of Atom Abstraction Reaction) |
| TBLMTO | Tight-binding Linear (combination Of) Muffin-tin Orbitals |