| Acronym | Meaning |
| ABR | Anaerobic Baffled Reactor (for Wastewater Treatment) |
| FRAT | Free Radical Assay Technique |
| CMAQ | Community Multiscale Air Quality |
| CH-CI | Core Hole Configuration Interaction |
| AOEC | Association Of Occupational And Environmental Clinics |
| NBO | Natural Bond Order |
| BCPCT | Best Conventional Pollutant Control Technology |
| MFO | Mixed-function Oxidase |
| HOPG | Highly Oriented Pyrolytic Graphite |
| PPE | Porcine Pancreatic Elastase |