| Acronym | Meaning |
| FVVM | Finite Volume Variational Method (for Mol. Calcns.) |
| STA | Single-transition Approximation |
| SDA | Spray Drying Absorber |
| AISIT | Automatic Intelligent Sampler For Inorganic Trace Constituents |
| OECD/SIDS | Organisation For Economic Co-operation And Developments Screening Information Data Sets |
| CFO | Crystal Field Orbital |
| NTNCWS | Nontransient, Noncommunity Water Supplies |
| POM | Particulate Organic Matter |
| CNT | Carbon Nanotube |
| RMW | Regulated Medical Waste |